Alternatives · Email Sending
MailerQ alternatives
As of Nov 13, 2026, the highest-graded MailerQ alternative is Bird Email (2.6 GPA). It's also the best free one.
MailerQ compared with 5 alternatives: KumoMTA, Bird Email, SocketLabs, Mailgun and SMTPeter.
MailerQ is a paid product with a free trial, starting at €10,000 one-time per instance, plus €2,000 a year for updates and support. 3 of the 5 alternatives are free or have a free plan. One more offers a free trial.
Listings checked up to Nov 13, 2026 · Where the facts come from
Black Friday: is there a MailerQ sale?
At a glance
| Tool | Price | Free plan | Runs on |
|---|---|---|---|
| MailerQThis tool | Free trial · from €10,000 one-time | Trial only | Web |
| KumoMTA | Free plan · from $5,000/yr | Yes | Linux |
| Bird Email | Free plan · from $15/mo | Yes | Web |
| SocketLabs | Free trial · from $39.95/mo | Trial only | Web |
| Mailgun | Free plan · from $15/mo | Yes | Web |
| SMTPeter | From €55/mo | No | Web |
How each one differs from MailerQ
KumoMTA
Open-source mail server for high-volume, self-run email sending
- KumoMTA starts at $5,000 per billion messages per year for Silver support.
- KumoMTA has a free plan, which MailerQ lacks.
- KumoMTA also lists a Linux app.
- KumoMTA lists no web app, which MailerQ has.
- KumoMTA is open source, according to its own site.
Suits: Email platforms and enterprises that want to own their sending infrastructure
Bird Email
SparkPost's successor: Bird's email API, paid from a prepaid balance
- Bird Email starts at $15 per month, deposited to your Bird balance.
- Bird Email has a free plan, which MailerQ lacks.
- Bird Email also covers email campaigns.
- Bird Email does not cover inbox warm-up and dMARC, which MailerQ does.
Suits: Existing SparkPost customers planning their next integration
SocketLabs
Email delivery over SMTP or API, with built-in analytics
- SocketLabs starts at $39.95 per month for 40,000 emails, billed monthly.
- SocketLabs also covers reports.
- SocketLabs does not cover inbox warm-up and dMARC, which MailerQ does.
Suits: Teams that want a reputation score and reporting alongside SMTP sending
Mailgun
Email API and SMTP relay for developers, with list validation
- Mailgun starts at $15 per month for 10,000 emails.
- Mailgun has a free plan, which MailerQ lacks.
- Mailgun also covers email verification.
- Mailgun does not cover inbox warm-up and dMARC, which MailerQ does.
Suits: Developers sending and receiving email from an app
SMTPeter
Dutch-hosted SMTP and REST email service with a dedicated IP
- SMTPeter starts at €55 per month for up to 25,000 emails.
- SMTPeter also covers templates.
- SMTPeter does not cover inbox warm-up, which MailerQ does.
Suits: Companies that want EU-hosted transactional sending with a dedicated IP
Limits worth knowing in MailerQ
- It is software you install and run on your own servers; the vendor describes it as on-premise, and it uses RabbitMQ and a MySQL or PostgreSQL database.
- Prices are in euros, per instance. Updates and support are an extra yearly charge of 20% of the license fee.
- The Regular license caps sending at 100K emails per hour and 10 domains.
- The pages do not name supported operating systems.
Common questions
What are the alternatives to MailerQ?
The alternatives to MailerQ in this directory are KumoMTA, Bird Email, SocketLabs, Mailgun and SMTPeter. Each one has a side-by-side comparison with MailerQ.
Is there a free alternative to MailerQ?
Yes. KumoMTA, Bird Email and Mailgun have a free plan alongside paid ones.
Which MailerQ alternatives work on Linux?
The MailerQ listing does not include a Linux app. KumoMTA lists one.
Is there an open-source alternative to MailerQ?
KumoMTA is described as open source on its own site.
When were these prices checked?
Each listing shows its own date. On this page they run from Oct 18, 2026 to Nov 13, 2026. Vendors change prices without notice, so confirm on their site before you buy.