4.4/5
Capterra rating
110 reviews
Report
Should I Use Mailrelay?
Free account sends up to 80,000 emails per month to up to 20,000 contacts.
Worth it
Worth itBuy if you're a small business, NGO, or newsletter sender wanting free bulk email under 20,000 contacts.
Huge free tier (80k emails/20k contacts) is the draw; thin reviews and weak security transparency are the trade.
Confidence: Medium
80,000 emails/mo
Free tier
to 20,000 contacts, $0
~4/5
Trustpilot
customer rating
~$1.3M
Company revenue
GetLatka estimate
Value for money
4
80k emails/mo free beats most rivals
Ease of use
4
4.4/5 Capterra suggests a smooth experience
Feature depth
3
New AI features; integration breadth unclear
Security posture
2
2023 plugin CSRF CVE; no security page
Pros
Cons
Gotchas
Best for
- Small businesses sending newsletters
- Budget-conscious lists under 20k contacts
- NGOs and associations
- Spanish/European market teams
Not for
- High-volume senders past 20,000 contacts
- Developers needing transactional SMTP/API scale — SendGrid-class tools fit better
- Security-sensitive enterprises wanting public security documentation
- Guess: shops needing deep ecommerce/CRM integrations
Companies that use it
Pricing
Free
$0
- 80,000 emails/month
- Up to 20,000 contacts
Security
One known CVE on its WordPress plugin (CSRF, 2023); responsible disclosure policy exists, but no dedicated security page found.
- CVE-2023-45108 — CSRF in Mailrelay WordPress pluginThe Mailrelay WordPress plugin was affected by a cross-site request forgery vulnerability.⁷
What users say
Reviewers like the price and free tier, but some Reddit users say rivals like Brevo outperform it.
“In my opinion Brevo is 2x better”
“Mailrelay is the best and cost-friendl…”
Alternatives
Compare Mailrelay with each alternative.
Brevo
Reddit pick for starting from scratch; strong free tier
SendGrid
Better fit for developer/transactional email at scale
MailerSend
High-performance SMTP relay for transactional email
Mailrelay vs MailerSendMoosend
Named among Mailrelay's top alternatives; automation-focused
Full analysis
Based on ~30 public sources; G2 review count is small (12) and some review snippets were truncated.
Sources
- Mailrelay pricing & free accountmailrelay.comofficial
- Mailrelay homepagemailrelay.comofficial
- Capterra reviews (4.4/5, 110 reviews)capterra.comreview
- G2 reviewsg2.comreview
- Trustpilot reviews (~4/5)trustpilot.comreview
- Reddit r/marketing threadreddit.comreview
security
- Mailrelay security page (not found)mailrelay.comsecurity
- Responsible disclosure policymailrelay.comsecurity
- Yahoo Finance: Mailrelay AI launchfinance.yahoo.comnews
- GetLatka revenue estimategetlatka.comnews
- Asus case studymailrelay.comofficial
- Meliá case studymailrelay.comofficial
- Save the Children case studymailrelay.comofficial
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