Mailrelay, the largest free email marketing account

Mailrelay is an email marketing platform designed to create, send, automate, and analyze campaigns from a single environment.

Our value proposition stands out, above all, for combining an exceptionally high free volume with marketing features that cover the entire contact lifecycle.

With the free account, it is possible to send up to 80,000 emails per month and manage up to 20,000 contacts, without entering a payment card.

In addition, Mailrelay maintains human support via phone, chat, and tickets for all accounts.

This significantly changes the comparison with other email marketing tools.

It is not just about being able to send newsletters.

Mailrelay includes automations, advanced segmentation, A/B testing, forms, landing pages, analytics, personalization, users with permissions, and integrations.

Therefore, it can be used from the very first lead to campaigns aimed at retaining, recovering, or converting customers.

Free Mailrelay: high volumes, contacts, and technical support

A free account to send up to 80,000 emails per month.

One of Mailrelay's main features is its ability to perform mass mailings without an upfront cost. The free account allows sending up to 80,000 monthly emails to a database of up to 20,000 stored contacts.

Furthermore, it is not a free trial that expires after a few days. The plan is permanently free and does not require a credit card to start.

This allows testing an email marketing strategy with a real database. It also makes it easier to increase campaign frequency without hitting the limit after just a few send-outs.

The free volume is particularly relevant compared to other platforms:

Mailjet currently offers 6,000 monthly emails and 1,000 contacts on its free account
MailerLite limits its free plan to 2,500 monthly emails and 250 subscribers
Klaviyo, for its part, limits its free plan to 250 active profiles and 500 monthly email sends
Acumbamail indicates 2,000 monthly sends for its free plan
Mailchimp has also significantly reduced its free capacity, and its current offer operates at much lower volumes

Consequently, Mailrelay's 80,000 monthly sends mark a considerable difference within this competitive group.

Easy contact import and export without duplicates

Switching tools should not force you to rebuild a database. For this reason, Mailrelay allows importing contacts via CSV or TXT files, copying and pasting data, and even performing migrations directly from Mailchimp.

During an import, Mailrelay identifies existing contacts.

Depending on the chosen settings, it can ignore them or update their details instead of creating the same contact again. This makes it easy to work with large databases without generating duplicates with every import.

Exporting is also straightforward. You can filter subscribers and download the data in CSV to analyze it, create backups, or use it in other tools.

This simplicity reduces migration friction and gives you greater control over audience data.

Mailrelay support in Spanish provided by real people

A good tool needs good features. However, when a deliverability, DNS, or configuration issue arises, having human assistance can be even more important.

Mailrelay provides human technical support by phone, chat, and ticket system, including on its free account. Support is available in Spanish and other languages.

Therefore, it is not necessary to upgrade to a paid plan first just to ask a technician a question.

This difference is particularly visible when comparing support models. For example:

Mailjet offers ticket support during the first 30 days of its free account
Klaviyo limits free plan email support to the first 60 days
MailerLite includes community support in its free tier and reserves other channels for higher plans

Thus, ongoing human support is one of Mailrelay's key differentiators, especially for SMEs, associations, agencies, and teams without in-house email marketing specialists.

Email marketing deliverability and domain configuration

High-deliverability email marketing with sending infrastructure.

Sending thousands of emails is of little use if a large portion ends up blocked or in spam.

Mailrelay works with its own IP ranges and technologies designed to optimize mass mailing delivery. The infrastructure and reputation of the sending system form a core part of its deliverability offering.

In shared IP environments, multiple senders use a common infrastructure. This allows leveraging already warmed-up IPs with an established reputation, rather than necessarily starting from a brand-new IP with no history.

Additionally, Mailrelay offers dedicated IP options for projects requiring greater control over their sending reputation. In that case, reputation management depends much more on the sender itself.

Because of this, Mailrelay can adapt both to companies that prefer a shared infrastructure and to more specific sending requirements.

SPF, DKIM, DMARC, and custom domain to improve deliverability

Deliverability does not depend solely on the provider either. Sender authentication plays a fundamental role.

Mailrelay allows configuring SPF, DKIM, and DMARC, even on the free account. It also allows using a custom domain to replace generic domains in tracking links and image URLs.

A custom domain reinforces consistency between the brand, the sender, and the links displayed in campaigns. This setup is specifically oriented toward improving deliverability and email perception.

Furthermore, a single account can configure multiple custom domains. This feature is useful when an organization works with multiple brands or authorized domains.

In this way, Mailrelay combines sending infrastructure with tools so that every business can take care of its own technical reputation.

Configurable open and click tracking

Not all companies wish to perform the same level of tracking. Nor do all campaigns need to measure the exact same data.

For this reason, Mailrelay allows enabling or disabling open and click tracking from a newsletter's advanced settings.

The user can choose whether to record clicks, opens, or both. If these options are disabled, Mailrelay stops collecting those metrics for that specific newsletter.

This option provides more control over measurement and makes it easier to adapt each campaign to the organization's internal privacy and analytics decisions.

Automation, personalization, and advanced segmentation with Mailrelay

Email automation for drip campaigns, lead nurturing, and much more.

Mailrelay includes a visual automation editor to build journeys without manual coding.

Workflows can be triggered by a subscription, a date, a birthday, group or tag membership, and other events. Mailrelay also supports conditions, branching, and various actions.

This enables creating welcome campaigns, drip sequences, and lead nurturing strategies. Likewise, reminders, lead magnet follow-ups, date-based automations, and birthday campaigns can be developed.

User actions can also serve as triggers. For instance, a click, a download, or specific contact changes can advance an automated journey.

In e-commerce, Mailrelay includes automations designed for scenarios like abandoned carts. Furthermore, its system supports actions via email, SMS, and webhooks.

The benefit is clear: an SME can automate routine processes without facing the steep learning curve of an overly complex platform.

Email campaigns with custom fields

Two contacts can belong to the same list and yet require different messages.

Mailrelay allows creating and storing custom fields in subscriber records. That data can then be used to personalize content and segment campaigns.

This way, information such as name, company, location, interests, or other business-collected data can be utilized.

In addition, Mailrelay supports conditional content. Specific sections of an email can be shown or hidden based on the information available for each contact.

The result is a mass mailing that does not have to look like an identical message to the entire database.

Automatic tags based on contact actions

Mailrelay tags represent interests, statuses, or funnel stages.

A tag can be assigned through a form or an automation. It can also change based on what the contact does during their journey.

For example, an automation can check whether a person clicked on a link. It can then apply a different tag to those who clicked versus those who did not.

These tags can later be used in filters, segments, and new automations.

Thus, every interaction provides insight to make the next communication more relevant.

Advanced segmentation with multiple conditions

Mailrelay's segmentation goes beyond creating separate lists.

Segments are dynamic. Contacts enter or leave them as they meet or cease to meet the conditions. Groups, on the other hand, function as more static collections.

The builder allows adding multiple conditions and organizing them into condition groups. Additionally, you can choose whether all rules must be met or just some of them.

Multiple groups can be combined using match logic again. Consequently, quite specific audiences can be built without manually creating numerous lists.

Conditions can stem from subscriber fields, groups, custom details, or behavior. The latter includes opens and clicks.

For example, it would be possible to target contacts from a specific province, with a certain interest, belonging to a group, who have clicked on a specific campaign.

A/B testing to optimize email campaigns

Mailrelay includes A/B testing to compare different alternatives before performing the final send.

These tests allow experimenting with elements like the subject line or the sender name to see which option yields better results.

The value of A/B testing lies in replacing guesswork with data. A small change in a subject line can alter the response of thousands of recipients.

Moreover, having this feature alongside segmentation, analytics, and personalization enables a continuous improvement process.

Forms and landing pages to capture new contacts

Advanced subscription form builder.

Mailrelay includes a form builder connected directly to the subscriber database.

When creating a form, you can select the groups where records will be saved. These groups can remain visible or hidden from the user. Security mechanisms like CAPTCHA can also be enabled.

The form supports custom fields and various design options. Elements can be reorganized and adapted to the information each business needs to collect.

In this way, the lead enters Mailrelay directly and can start an automation flow without intermediate manual steps.

Integrated landing page builder

Along with forms, Mailrelay features its own visual landing page editor.

You can start from a template or build the page from scratch. Then, add the subscription form and publish the landing page to start capturing contacts.

The builder is integrated with Mailrelay. Therefore, a person who signs up can go straight into the contact database and proceed through the journey defined for that capture effort.

This is especially useful for ad campaigns, e-books, webinars, promotions, events, or any strategy based on a lead magnet.

Mailrelay also supports custom domains, ensuring brand presence does not rely solely on generic URLs assigned by the platform. Its system supports subdomain configuration via DNS.

Dozens of templates to build landing pages faster

Designing a page from a blank canvas is not always ideal.

Mailrelay includes a gallery of pre-designed landing page templates as a starting point. The selection features dozens of designs adaptable to different campaigns and goals.

Texts, images, sections, and forms can then be modified to match each business's identity and offer.

This reduces the time needed to go from an idea to an active lead acquisition campaign.

Email editor, templates, and professional campaign creation

Modular drag-and-drop editor with reusable blocks

Mailrelay's editor allows building emails using a visual drag-and-drop system.

Users can insert text, images, buttons, dividers, and other elements without writing HTML. They can also work with pre-defined blocks and modular structures.

A particularly useful feature is reusable blocks. Mailrelay lets you save custom elements as favorites or universals to use them again in other designs.

This comes in handy for headers, calls to action, signatures, recurring promotions, or corporate footers.

As a result, the team does not need to rebuild the same sections campaign after campaign, while maintaining a more consistent visual identity.

Hundreds of email templates to get started faster

Mailrelay provides a broad email template gallery, with hundreds of options and designs serving as a foundation for preparing professional campaigns.

Templates can be customized to fit corporate identity. The platform also allows starting from pre-designed layouts or using other campaign import methods.

This benefits both those who want to design visual newsletters and those who prefer much simpler commercial messages.

The availability of templates shortens production times, while still leaving the user free to modify the layout with the visual editor.

Email drafting with artificial intelligence

Mailrelay also incorporates artificial intelligence features into the newsletter creation process.

The editor allows using AI to assist with copywriting. Furthermore, the tool can generate drafts based on information like a URL, message type, tone, language, and provided instructions.

AI does not replace a marketer's strategy; however, it can speed up drafts, variations, and initial campaign versions.

Combined with A/B testing, it also makes it easier to generate alternatives that can later be validated with real-world results.

Responsive designs and dynamic content

Emails created with Mailrelay can be set up to adapt to different devices. This is essential since the same campaign may be opened on desktop computers, tablets, or smartphones.

Additionally, the platform supports variables and conditional content.

For instance, a section of the newsletter can be shown to certain contacts and hidden from others. This makes it possible to create more personalized campaigns without preparing a full email for each segment.

Mailrelay analytics, users, and integrations

Real-time email marketing analytics and metrics

Mailrelay offers real-time statistics on the activity generated by campaigns.

Available metrics include:

Emails delivered
Opens
Clicks
Unsubscribes
Bounces
Spam complains
Heat map
Best URLS

It's easy to analyze which URLs generate the most engagement.

Reports can display clicks through visual representations and heatmaps. In addition, hard and soft bounces, unsubscribes, and spam complaints can be distinguished.

Mailrelay also provides extra insights associated with opens and clicks, such as specific location data, browser, and operating system details.

Moreover, reports can be exported and shared. Mailrelay's feature set includes CSV and PDF exports, as well as shareable report links.

Therefore, statistics do not just serve to observe results, they help determine which segments work, which content drives more clicks, and which campaigns require adjustments.

Multiple users with profiles, roles, and permissions

Mailrelay is built to support multiple users within a single account.

Each user can be assigned a profile with a specific permission level. That way, a business decides who can edit newsletters, access analytics, create forms, or send campaigns.

Profiles allow granting or denying specific actions. Mailrelay documents around a hundred possible permissions associated with tasks like reading, creating, updating, deleting, sending, sharing, or managing.

For example, a designer can be given access to the editor without viewing unnecessary information. Another user can analyze reports without having permission to send out a campaign.

This granularity is useful for marketing departments, agencies, and companies with internal approval workflows.

Mailrelay integration with Make

Mailrelay offers integration with Make, an automation platform that connects applications and moves data between them.

Through this path, scenarios can be built to update subscribers, organize groups, sync contacts, or connect forms and other apps with Mailrelay.

The practical value is immense. A lead generated in another tool can automatically be added to Mailrelay and assigned the corresponding tag or group.

An automation can then initiate appropriate follow-up.

Furthermore, Make facilitates connecting Mailrelay with thousands of services involved in other sales and marketing processes.

REST API, webhooks, and plugins to extend integrations

Make is not the only path for integration.

Mailrelay provides a REST API for programmatically managing contacts, campaigns, and other account data. It also features webhooks as well as various plugins and integrations.

For example, there is a WordPress plugin designed to sync users with Mailrelay. Solutions for e-commerce and other environments are also available.

This allows Mailrelay to operate as a component of a broader marketing infrastructure, rather than keeping data trapped in an isolated application.

Scoring, list cleaning, and advanced contact management

Database management includes more features than simple group creation.

Mailrelay's current offering includes contact scoring, automatic import, and automatic list cleaning, alongside segments, custom fields, and tags.

Scoring helps prioritize contacts based on criteria established within the platform. On the other hand, maintaining database quality helps work with a more valuable audience for email campaigns.

Likewise, groups, tags, segments, and fields can be combined with automations. Thus, the database becomes an active tool for deciding which communication each person receives.

RSS campaigns, transactional email, and multichannel communication

Mailrelay includes additional features that extend its use beyond conventional newsletters.

The platform accounts for RSS campaigns, send scheduling, transactional services via SMTP/API, and automations with additional actions like SMS and webhooks.

Additionally, the interface includes areas for SMS and WhatsApp, alongside traditional email campaigns.

The availability and pricing terms of specific channels or extra services may depend on the subscribed plan. Therefore, it is worth distinguishing them from the volume permanently included in the free email marketing account.

Mailrelay compared to Mailchimp, Brevo, Mailjet, MailerLite, Acumbamail, and Klaviyo

The main market platforms share many features. Mailchimp, Brevo, Mailjet, MailerLite, Acumbamail, and Klaviyo also offer various combinations of visual editors, templates, automation, segmentation, forms, analytics, and integrations.

Because of this, looking only at a "yes" or "no" checkbox can be misleading. The important question is knowing what you can do, with how many contacts, how many sends, and on which plan.

In Mailrelay, the combination is particularly competitive. You can combine 80,000 monthly emails, up to 20,000 contacts, automations, A/B testing, segmentation, forms, landing pages, personalization, and analytics within an entry point that has no monthly fee.

Mailjet, for instance, provides an advanced editor, basic statistics, and forms on its free plan. However, that level is capped at 6,000 monthly emails, 200 per day, and 1,000 contacts. Segmentation appears in higher tiers of its offering.

MailerLite includes campaigns, three automations, one landing page, three forms, and two users on its free plan. However, its current limit is 250 subscribers and 2,500 monthly emails. Its free support is community-based.

Klaviyo stands out especially in e-commerce, automation, segmentation, and analytics. Its free tier allows experimenting with those features, but it is limited to 250 active profiles and 500 emails per month. Free email support also carries a 60-day time limit.

Brevo incorporates campaigns, a drag-and-drop editor, automations, and multichannel communication. Its free plan enforces a 300-email daily limit, so a mass sending strategy hits a volume restriction sooner.

Acumbamail shares relevant benefits for the Spanish market with Mailrelay, such as Spanish support, automation, visual editors, and landing pages. However, its own recent information places its free email capacity at around 2,000 monthly sends.

Mailchimp continues to offer a broad ecosystem of email marketing, forms, landing pages, automation, and integrations. Nevertheless, its current free limits are much lower than the 80,000 sends and 20,000 contacts available in Mailrelay.

Therefore, Mailrelay's primary competitive strength does not rely on a single isolated feature.

It comes from bringing together a large portion of standard professional features with a free volume far exceeding these competitors, along with human support from the entry level up.

For an SME, startup, association, creator, e-commerce business, or agency, this means being able to build a complete strategy before database growth forces upgrading to a paid plan.

Frequently Asked Questions about Mailrelay and its free account

Is Mailrelay free?

Yes. Mailrelay offers a permanent free account that lets you send up to 80,000 emails per month and store up to 20,000 contacts. It does not require a credit card to set up this plan.

What is the main advantage of Mailrelay's free account?

Its main advantage is the available volume alongside the included features.

The account allows working with a base of up to 20,000 contacts and performing up to 80,000 monthly sends. Additionally, it incorporates design tools, automation, segmentation, analytics, forms, and other email marketing features.

Is Mailrelay the largest free email marketing account?

In monthly email volume among the main analyzed competitors, Mailrelay shows a very wide margin.

It offers up to 80,000 monthly emails. Mailjet offers 6,000; MailerLite, 2,500; Klaviyo, 500; and Acumbamail sets its free tier at 2,000 monthly sends.

Furthermore, Mailrelay combines that volume with up to 20,000 stored contacts.

Does Mailrelay include email marketing automation?

Yes. Mailrelay incorporates a visual automation editor with triggers, conditions, branching, and various actions.

You can create welcome series, drip campaigns, lead nurturing, birthday messages, date-based follow-ups, action-triggered automations, and e-commerce workflows, among other use cases.

Can I create a lead magnet with Mailrelay?

Yes. One potential strategy involves creating a landing page and a form, capturing the contact, and then initiating an automation.

The workflow can deliver or follow up on a downloaded resource and proceed with a lead nurturing sequence. Mailrelay supports download events and other actions as automation triggers.

Does Mailrelay include landing pages and forms?

Yes. It features a landing page editor and a subscription form builder.

Forms can incorporate custom fields and assign new contacts to groups. Landing pages can be built from available designs or created from scratch.

Can I use a custom domain with Mailrelay?

Yes. Mailrelay allows configuring custom domains via DNS.

This setup replaces the generic domain in tracking links and image URLs with a company subdomain. This helps reinforce sender identity and deliverability.

Does Mailrelay allow configuring SPF, DKIM, and DMARC?

Yes. The platform allows authenticating your domain using SPF, DKIM, and DMARC, even on the free account.

These configurations are part of the technical measures available to improve sender identification and protect sending reputation.

Does Mailrelay feature A/B testing?

Yes. A/B tests can be set up to compare alternatives, such as different subject lines or sender names, and make decisions based on actual campaign performance.

Can contacts be segmented by opens and clicks?

Yes. Segments can utilize subscriber actions—including opens and clicks—alongside data stored in fields and groups.

Multiple conditions and condition groups can also be combined, using logic that requires meeting all rules or just a subset of them.

Does Mailrelay allow tagging contacts automatically?

Yes. Tags can be added via forms and automations.

They can also be assigned based on behavior. For example, an automation can check for a click and tag each contact differently based on the result.

Does Mailrelay have real-time statistics?

Yes. The platform displays real-time data on opens, clicks, and other relevant campaign metrics. It also provides information on bounces, unsubscribes, and spam complaints.

Reports also allow analyzing links through visual representations such as click maps or heatmaps.

Can I disable open and click tracking?

Yes. Mailrelay lets you configure tracking for each individual newsletter.

You can disable click recording, open recording, or both. When an option is disabled, Mailrelay does not collect that metric for the corresponding newsletter.

Does Mailrelay support multiple users?

Yes. It is possible to add multiple users and assign them to profiles with specific permissions.

Profiles allow controlling who can read, create, edit, delete, send, or manage different account elements. This facilitates collaboration across departments, team members, and agencies.

Does Mailrelay integrate with Make?

Yes. Mailrelay can connect with Make to automate data sharing with other applications.

This allows creating workflows to sync contacts, update subscribers, organize groups, and connect Mailrelay with other marketing or management tools.

Does Mailrelay have an API?

Yes. The platform provides a REST API, webhooks, plugins, and integrations to connect subscriber data and campaigns with other systems.

It also offers integrations for environments like WordPress and e-commerce platforms.

Does Mailrelay provide support in Spanish even on a free account?

Yes. This is one of its most standout features.

Free plan users have access to human technical support via phone, chat, and tickets, just like users on other plans.

This means starting for free does not mean facing imports, technical configurations, or campaign questions alone. And precisely this combination of high free capacity, human support, deliverability, automation, design, lead capture, segmentation, and analytics is what makes Mailrelay an exceptionally solid alternative for conducting professional email marketing without upfront costs.