Mailrelay
6.1/10Spanish email and SMS marketing platform with a large free tier, automation, landing pages and transactional email, aimed at small and mid-sized businesses.
Data last updated November 2026 · Our methodology
Overview
Mailrelay is an email marketing service run from Madrid. It covers newsletters, automation, SMS and transactional email. Its main draw is the free plan, which allows 80,000 emails a month to as many as 20,000 contacts. Open and click tracking and most core features are included on that free plan. Every plan comes with a drag-and-drop editor with AI-assisted template creation, A/B testing, RSS campaigns, dynamic segments with tags and contact scoring, signup forms, landing pages, and a visual automation builder. The automation builder supports SMS steps, webhooks and abandoned-cart flows. Paid Standard and Enterprise plans are tiered by email volume, from 100,000 up to 10,000,000 emails a month. They add a priority sending queue, chat support, WhatsApp campaigns and transactional SMTP/API, and they remove the Mailrelay logo. Enterprise also adds phone support. Note that the Standard plan does not include open and click tracking. Monthly plans require a 12-month commitment, while prepaid email packs carry no commitment. Free-plan users can buy extras such as transactional email at 14.95 EUR a month, WhatsApp at 9.95 EUR a month and logo removal at 4.95 EUR a month. Dedicated IPs start at 600 EUR a year. On integrations, there are official WordPress and WooCommerce plugins, a REST API limited to 250 requests per five minutes, webhooks, Make, and a beta MCP server. The biggest gaps are that there is no native Shopify app and no official Zapier app. Data is stored in the EU. The service suits cost-conscious European small businesses, especially Spanish-speaking ones and WooCommerce stores. Reviewers say the automation is less deep than at larger competitors.
Our Rating
Who Mailrelay is best for
Good fit
The free plan's 80,000 emails a month and low-cost extras suit small budgets.
Startups can send at volume without paying until they need priority sending or transactional email.
The free tier and simple editor work for solo senders, though the logo stays unless you pay to remove it.
Less suited
WooCommerce plugins and abandoned-cart flows exist, but there is no native Shopify integration.
Multi-user roles with granular permissions are available, but the automation is less deep than at larger rivals.
The large free plan of 80,000 emails a month suits tight budgets.
- Mid-Market5/10
Paid tiers scale to 10 million emails a month, but the automation is limited.
It scales to 10 million emails a month, but the vendor is small and its integrations and compliance documentation are limited.
Pros & Cons
Pros
- The free plan allows 80,000 emails a month to 20,000 contacts with open and click tracking, which is far more than most competitors' free tiers.
- A/B testing, segmentation, landing pages, automation and abandoned-cart flows are included even on the free plan.
- Official free WordPress and WooCommerce plugins sync customers, products and carts.
- Data is stored in the EU, and Mailrelay acts as a GDPR Article 28 processor on all accounts.
- SPF, DKIM and DMARC setup and custom tracking domains are available on the free account.
Cons
- There is no native Shopify integration and no official Zapier app; the vendor points users to Make or the API instead.
- The Standard paid plan does not include open and click tracking.
- Monthly plans require a 12-month commitment.
- Reviewers describe the automation as limited compared with larger rivals, and some report bugs and poor support experiences.
- G2 shows an average of only 3.2 out of 5 from a small number of reviews.
Key Features
Not included
- Webinars
Mailrelay Pricing
Free
- 20,000 subscribers
- Ticket support only
- Normal sending queue
- 80,000 emails per month
- Open and click tracking
- Mailrelay logo in emails
Enterprise
- No Mailrelay logo
- Priority sending queue
- Open and click tracking
- WhatsApp campaigns included
- Transactional SMTP and API included
- Highest-priority support with chat and phone
- Volume tiers from 100,000 to 10,000,000 emails per month
Standard
- No Mailrelay logo
- Priority sending queue
- No open and click tracking
- Priority support with chat
- WhatsApp campaigns included
- Transactional SMTP and API included
- 12-month commitment, 10% discount for annual billing
- Volume tiers from 100,000 to 10,000,000 emails per month
Frequently Asked Questions
Yes. The Free plan is free forever and needs no credit card. It allows 80,000 emails a month to as many as 20,000 contacts, and Mailrelay's logo appears in the footer of your emails.
Not freely. Monthly plans require a 12-month commitment. If you want to avoid a commitment, prepaid email packages are available and stay valid for up to 12 months.
Neither has a native integration. Mailrelay recommends connecting through Make or its REST API. Official plugins exist for WordPress and WooCommerce.
Data is stored on servers in the EU. Mailrelay acts as data processor under GDPR Article 28 on all accounts, and it offers double opt-in and logs the IP address of each signup. Obtaining consent remains the sender's responsibility.
Free accounts get ticket support. Standard adds priority handling and chat, and Enterprise adds phone support.
The REST API allows 250 requests per five minutes on all plans, and a batch function can group up to 500 requests per call. SMTP has no request limit.
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