Sending emails through SMTP Relay?

SMTP Relay is simply described as the method of forwarding E-mails from a sender to the recipient on the Internet. It has features like:
  • Smarthost Configuration and Authentication methods include Whitelists, SMTP-After-POP, or ESMTP with the SMTP-Auth extension.
  • Open Mail relay with the SMTP server routes messages from both External sources and Internal server mail making it more vulnerable to spam abuse.
  • SMTP Relay server enables Extensions and Upgrades
  • Parallel Scanners and Firewalls are installed for Fighting spam at the sender’s end.
  • SMTP Relay also Allows Backup Mail service with the Recipient through Smarthost Configuration

Sending emails through a SMTP Server using an ESP

Sending through an email service provider, like Pepipost, via an SMTP relay saves companies from having to run their own mail server.

You create the email and send it to Pepipost’s SMTP server which sends it out to your recipients.

In order to combat spam, a majority of webmail providers (i.e. Gmail, Hotmail, Yahoo, etc.) put a limit on how many emails you can send to different recipients per day. As businesses, who need to communicate en mass with their audience, would often exceed this limit, they will require the services of an enterprise level email sending platform.

Choosing the right SMTP Port

SMTP port 587 is one of the best choices for nearly every use case for connecting to Pepipost

This port, coupled with TLS encryption, will ensure that email is submitted securely and following the guidelines set out by the IETF.

  • Port 25 is the default port used for relaying but is not as secure as it is the default port and mainly used by Spammers.
  • Port 465 should no longer be used at all as it is no longer as accepted standard SMTP Port and has been reassigned.
  • Port 2525 used when all other port is blocked Port 2525 is used for secure submission of emails for delivery by modern ESPs. Unlike other SMTP ports, you will not find the port block issue with port 2525.
Choosing the right SMTP Port

Sending emails via SMTP with Pepipost

You should use port 587 as a default SMTP port. Almost all mail servers support this port. In fact, Port 587 is the one recommended for mail submissions instead of port 25 as per RFC 2476.

Pepipost supports TLS connections, which you can verify by connecting and issuing an EHLO command from the command line interface. The resultant “250 STARTTLS” confirms the endpoint accepts TLS connection requests.

Real Time reports

Our reports give you real time updates to help you keep track of your AI powered Emails. Get all the details of emails you send along with their status as opened, soft/hard bounced, delivered, etc

You can save upto 90 days of transactional logs and get analytics of your sends as well as subacccounts for better analyszing your campaigns.

Secure Sending

For Marketing Automation Platform (MAP) providers and large Teams, Pepipost gives you detailed permissions so that you can control who can access what information in the account.SPF and DKIM are built into Pepipost’s domain management and we encourage users to deploy DMARC policy. This gives control of your domain and reduces the risk of spoofing.

Secure Sending

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The best solution for transactional emails! Couldn't be happier with the service. We use Pepipost for sending transactional emails and have consistently received great delivery rates at affordable prices.

Alexander JosephHead of Copy, PaperclipDigitalvia Trustvpilot

A great product. Pricing is very competitive. Compare to MailChimp, this product is cheaper. It provides WebHook capability, which is really beneficial.

Thang PhamDirector, Samsung Vina Electronicvia Trustpilot

Pepipost is better than Mailchimp and others we tried. The delivery rate with Pepipost is higher than any other 3rd party email senders we tried.

Adam WCEO, Jade Bloom INC.via g2crowd

Impressive service in all aspects. The best support service, fast and all problems solved. They guarantee delivery and make easy the integration between our services and their APIs.

Luiz Fernando MIT Director, WGL Business Solutionsvia G2

One of the best SMTP relay services I have ever used. Pepipost support is quick and great!

Jason MarzettiRemote Operations Centre Manager,F12.netvia Capterra

Don't take our word for it?

Our customers have spoken for us to help solidify our spot as a Leader in the G2 Crowd Grid for Transactional Email Software




Under 2 Minute Integration with Inbox Guarantee

Pepipost offers a robust fleet of email delivery services to expertly handle your transactional emails. From building a vibrant, personalized and responsive email to real-time monitoring of your important email traffic, our transactional email solution is built exclusively for developers and marketers.

Dynamic Email Delivery

We monitor your email delivery closely and watch out for anomalies in email behavior. With neural networks, we understand minute shifts in email delivery and auto adjust the throughput.

90 Days of History

While Sendgrid provides 7 days of message event history, Pepipost provides you with a searchable 90-day activity feed for all your email campaigns.

24/7 Live Chat Support

At Pepipost, we've always believed support must be free and readily available.That's why our developer evangeliests work around the clock to help you with your questions.And that's not all. Unlike Sendgrid,we don't give differential access to Support


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