Free SMTP Relay Providers

Here is a Complete List of Best SMTP Relay Email Providers Out There

If you are looking for an SMTP software and wish to send free emails with good deliverability rates, you have come to the right place. I have curated a list of best SMTP services and email relay providers that are making a mark and changing the way emails are send. You will also find some of the popular email providers in the list too, as you can easily integrate them to an SMTP using a 3rd party integration. Hope it help's you to pick the best SMTP software out there. We have also covered the pricing and number of free emails each service provide.

constant contact new logo

Constant Contact | 10,000 free emails | No Credit Card required

Constant Contact is one of the biggest email marketing companies out there. It can be integrated with SMTP with Zapier. Constant Contact has very powerful tracking and automation features.
Pricing | Features | Alternatives | Set up Email Auto Responder | Review | Send Emails at the Best Time


Mailjet – 6000 Free emails every month

Mailjet provides SMTP relay and email API services and can also be used to send free transactional emails. You can also integrate Mailjet SMTP with your WordPress Website using plugin.
Pricing | Features | Mailjet SMTP server Alternatives | Setting up Mailjet SMTP relay on your WP Site

Free SMTP Relay Providers 1

Elastic Email – UNLIMITED EMAILS to 5,000 Contacts for $ 15

Elastic Email has the best pricing among the SMTP relay Servers I have come across. The deliverability rate is also good. Elastic Email provides an email API for sending transactional bulk emails.
Pricing | Features | Alternatives | Review | Setting Up Elastic Email on your WordPress Website


PepiPost – Send 150,000 emails for just $25 (Best for Developers)

Pepipost is a developer friendly tool that let's you send bulk emails. Pepipost SMTP relay and email API can be used to send thousands of transactional emails.
Pricing | Features | Alternatives | Setting Up Elastic Email on your WordPress Website


Moosend relay – UNLIMITED FREE EMAILS TO 1000 Subscribers

We got one more very good SMTP relay provider Moosend for you which you can use to send UNLIMITED free emails to 1,000 subscribers. Moosend concentrates on Agencies, Content creators, Saas software targeting each category in a very unique way.
Pricing | Features | Alternatives

mailgun logo

MailGun – Transactional Email API

It has one of the most efficient email API’s and it can be used to create sophisticated transactional funnels, that’s why it made our list of SMTP relay servers.
Pricing | Features | Alternatives

gmail smtp

Gmail SMTP – Forever Gem

One of the most popular and cheapest free SMTP servers out in the market is the Gmail SMTP Service. It is mostly used to send free personal mails and having virtual connections, storing data. You can send 500 emails Daily using Google SMTP in the trial period.
Pricing | Features | Gmail SMTP Alternatives

Free SMTP Relay Providers 2

SendGrid – 40000 free emails 1st month, then 3000 free emails every month

SendGrid is a platform for email services which not only provides reliable marketing and transactional email services through the cloud but also focuses on scalability, deliverability as well as provides the users with real-time analysis.
Pricing | Features | Sendgrid SMTP relay Alternatives

Most of them are free relay servers but we have also included some of the paid options as well just in-case the free options does not satisfy the need.