Cheaper MailGun / Sendgrid / Mandrill alternative

$5 p/month 50,000 emails


Free plan

  • $0 p/mo
  • Hourly email limit
  • 14,400 emails p/mo
  • Max 100 unique recipients

Perfect for testing our mail servers

Free sign up

1-Month plan

  • $5 p/mo
  • No hourly email limit
  • 50,000 emails p/mo
  • Save 0%

$5 billed every month

Free sign up

1-Year plan

  • $4.60 p/mo
  • No hourly email limit
  • 50,000 emails p/mo
  • Save $5

$60 $55 billed every year

Free sign up

*Not for sending (bulk /mass) newsletters and/or unsolicited /spam / cold emails.

What is allowed

Here's a list of email types that we allow at the moment, questions? Send us an email

Allowed Not allowed
Sign up emails Newsletters
Password reset emails Promotional emails
Notification emails Cold emails
Welcome emails Announcements
Transactional emails Marketing newsletters
Forum notifications Unsolicited emails
Invoice & receipt emails Spam

Compare pricing

Pricing based on 50,000 emails p/mo

  • Kingmailer: $5 p/mo or $55 p/year
  • MailChannels: $70 p/mo or $840 p/year
  • MailGun: $35 p/mo or $420 p/year
  • Sendgrid: $30 p/mo or $360 p/year
  • PostMarkApp: $50 p/mo or $600 p/year
  • SMTP2Go: $35 p/mo or $420 p/year
  • Mandrill: $50 p/mo or $600 p/year

Email delivery

How is the inbox delivery, you may ask?

We have great inbox delivery, and you can verify this yourself also.

All our customers are in the same IP pool and share the same IP pool, this makes our IP pool very strong and reputable, giving it very high inbox rates, and also because we do not allow spam.

  • We have a 80+ % Sender score on ReturnPath, for example see here
  • We  have a 10/10 Mail Tester score, see here
  • Our customers get a free clean IP address, not blacklisted, for example you can see here
  • We have 100% uptime, see here
  • Is it worth the $5 p/mo? Totally.

Do you need additional proof? We can supply, just email us.

Why users like Kingmailer

Here's a list of reasons why companies and developers use Kingmailer

  • Quick email integration
  • Free plan
  • Easy setup
  • Highly reliable
  • Extensive API
  • Great for parsing inbound emails
  • Easy to use UI
  • Excellent customer support
  • Email + WhatsApp support
  • Easy to view logs of sent emails
  • Easy to configure in Gmail
  • Bitcoin also accepted

Custom plan? Upgrade, downgrade, or cancel any time. 30-day money-back guarantee on all our packages. Try for free.

180 days email log - unlimited domains - email + WhatsApp support - superfast mail server - clean IP - 10/10 Mail Tester score servers

Check our PowerPoint-presentation

View all your email traffic with one click. We don't just give you an SMTP server. We're also giving you the tools to improve your business. Email analytics is a MUST. Click to zoom in:

Best designed for Transactional emails, SMTP email relays and sending newsletters.

All plans include

  • SMTP Username / Password
  • Email SSL
  • Data Recovery
  • Email Archive (180 days)
  • Email Monitoring
  • Queue Manager
  • Response Management
  • Routing
  • Signature Management
  • Spam Blocker
  • Spam Check
  • Whitelisting / Blacklisting


Why do you need this?

You need this to know what's happening with your emails. Similar to Google Analytics which you use, to analyse website traffic, you need this tool to analyse 'email traffic'. If you're not analyzing any email traffic, you're missing out. So whether it's a newsletter email, a transactional email such as a WooCommerce order email/new sign up, or an email relay to your Gmail inbox, it's important that you log this data so you can always troubleshoot/analyse this data. Every website need this, similar to Google Analytics. Try for free and see for yourself.

Will I have my own SMTP username and password?

Yes, after signing up, verifying your domain, your own SMTP username and password will be ready for you to use. All of your emails will be logged and easily viewed in your own email dashboard.

How do I use this with a WordPress SMTP plugin?

Go to your SMTP Mail Settings page and enter:

From email: < enter here your company email)

From name: < Your company name >

SMTP Host:

Encryption: none (emails are already being encrypted by our servers)

Port: 25

Auto TLS: on

Authentication: on

SMTP username / SMTP password

Visit the Help section in your Kingmailer account to find your SMTP username and password.

How are payments handled?

All of our billing is handled by 2Checkout.

What payment types do you accept?

We accept payments via Bitcoin, Visa, Paypal, MasterCard, American Express, Diners, and JCB.

Do you accept Bitcoins?

Yes, we do.

Do I need to have a domain?

Yes. In order to be able to use our SMTP services, you will need to have your own domain. You will need to verify the domain and add a few DNS records, before it's good to go.

How do I upgrade?

To upgrade or downgrade your plan, please send us an email

Can I cancel my subscription?

You can cancel your subscription anytime, just send us an email

Can I upload my list here and start emailing?

No. We do not provide a way for customers to upload their subscribers onto our platform. We only provide the SMTP credentials and email relay services, that you can use with your own email marketing software or free email marketing plugin in your WordPress website.

Will my email go to spam/junk folder?

Most definitely not. BUT, if you are you sending unsolicited emails, the chances are high it will.

I bought a mailing list, can I send emails to it?

Actually no, as it will hurt our SMTP servers.

Can I connect this with Gmail, Yahoo, Hotmail etc?

Yes, this is possible. Just use the SMTP settings, and all emails will be relayed via our servers and sent to your email inbox. Make sure to configure the mx records first.

Can I request refund?

Yes, no problem, send us an email

Do you accept Western Union or banking transfers?

Kingmailer can accept these payment methods in certain situations. Please contact for assistance.