Buy SMTP with Bitcoin
We accept Bitcoin. Buy your SMTP Server and pay with Bitcoin. Try our SMTP service for free. Start sending and receiving emails with your free SMTP username and password. Upgrade and pay with Bitcoin when you are ready.
Kingmailer
Kingmailer provides everything you’ll need for sending, receiving and routing (forwarding) your emails.
Bulk/Marketing allowed ✘
SMTP ✔
REST API ✔
Official libraries ✔
Community libraries ✘
Spam score checking ✔
Spam complaint handling ✔
Bounce handling ✔
Shared IPs ✔
Dedicated IPs ✔
Separate servers ✔
Pre-made email templates ✘
Template engine ✘
Inbox preview ✔
Scheduled delivery ✘
A/B testing ✘
Email address validation ✘
RegEx matching on all email headers (“routes”) ✘
Chain multiple filters ✘
UTF-8 encoding ✔
Raw MIME ✔
Strip signature and quote blocks ✔
Spam filtering ✔
Bounce rates ✔
Open rates ✔
Click tracking ✔
Unsubscribe tracking ✘
Spam rates ✔
Full message storage ✔ (180 days /custom)
Automatic tagging ✘
Custom tagging ✔
Custom header metadata tag ✘
Custom tracking domain ✘
Geolocation data ✘
Email client and device tracking ✔
Real-time notifications ✔
DKIM ✔
DMARC ✔
2FA ✘
Opportunistic TLS ✔
Enforced TLS ✔
System availability API ✔
Service availability API ✔
Seen something inaccurate? Let us know info@kingmailer.co
Here’s a list of email types that we currently support and don’t support:
| Supported | Not supported |
|---|---|
| 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 |
Email Inbox Placement
| Email Provider | Inbox Placement Results |
|---|---|
| Gmail | 100% |
| Outlook | 100% |
| Yahoo | 100% |
| Mail.ru | 100% |
| G Suite | 100% |
| Missing | 0% |
| Spam | 1.8% |
| Inbox Placement | 98.2% |
For the full report please go here Email delivery report. (Opens in a new tab)
How does it work?
When you are ready to upgrade your plan, we will email you our BTC wallet address so you can make the payment.
Please make sure you have already tested the service and it’s working on your end.
After receiving the payment, we will change your Free plan to a Paid plan.
Why you will love Kingmailer
| Quick email integration |
| Easy setup |
| Free plan |
| Highly reliable |
| Web API |
| Can also be used for inbound emails |
| Easy to use UI |
| Email + WhatsApp support |
| Easy to view logs of sent emails |
| Easy to configure in Gmail |
| Bitcoin also accepted |
FAQ
We accept PayPal and all major credit and debit cards. Your payment info is stored and processed securely by 2Checkout and never touches our servers.
Yes.
Yes.
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.
Yes.
Yes. In order to be able to use our SMTP service, you will need to have your own domain. You will need to verify the domain and add a few DNS records (at least SPF and DKIM), before it’s good to go.
If you are a developer and you need this for testing purpose and don’t have your own domain, we suggest registering a free .TK domain to try our service.
Send us an email and we’ll get your account upgraded.
Yes, you can and you may.
We give 98% guarantee that it will not.
Yes, this is possible. You will need to add our MX records to your DNS and configure routing. Don’t worry, we’ll help you with this.
No. We do not provide a way for customers to upload their subscribers onto our platform.
Kingmailer can accept these payment methods in certain situations. Please contact info@kingmailer.co for assistance.
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