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SendPost

Guides and resources for SendPost — the transactional email API built for reliable delivery, real-time analytics, and developer-friendly integration.

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Latest

Best Transactional Email API for Developers in 2026: Scored and Compared

Compare SendGrid, Postmark, Mailgun, SES, Resend, and SendPost on the 5 metrics that matter: latency, uptime SLA, SDKs, webhooks, and real price pe...

Grant Hatfield Aug 19, 2026

How to Improve Email Authentication for Transactional Emails

Sending transactional emails can be a tricky business, as we all know. With the rise in spam and phishing emails, it's more important than ever to make sure your emails are properly authenticated. ...

Grant Hatfield
February 8th, 2023

Ensure Your Emails Land in Inboxes: A Guide to Email Blast Deliverability

We've all been there, sending out an email blast with high hopes, only to have it land in the dreaded spam folder. It's like sending a message in a bottle into the vast ocean of the internet, with ...

Grant Hatfield
February 7th, 2023

The Ultimate Alternative to Amazon SES - SendPost

Big or small, no business can stand in the market without a reliable email deliverability tool.

Grant Hatfield
January 12th, 2023

PowerMTA Pricing and Plans With Its Best Alternative

The market is full of email communication tools, each promising the best results. However, even with the best tools, you are still at risk of email spamming.

Grant Hatfield
December 30th, 2022

Postmark Pricing and Plans With Its Best Alternative [2026]

Emails are the lifeblood of any SaaS business. Whether bringing all team members on board with the latest company news or staying in touch with your customers, thoughtful email communication can ma...

Saitej Makhijani
December 16th, 2022

What are Email APIs & How Do They Work?

Emails aren’t just meant for your marketing team to maintain customer engagement. It’s the backbone of your product, making it functional.

Grant Hatfield
December 12th, 2022

What Are SMTP Errors, and How to Troubleshoot Them?

Once you hit the send button, every email should safely land in the recipient’s inbox. But unfortunately, we don’t live in a perfect world.

Grant Hatfield
December 5th, 2022

SMTP Relay: How Does It Work, and Its Top 5 Benefits

Sending an email seems like an easy job. You draft the perfect message and hope to hear from the customer.

Grant Hatfield
November 25th, 2022

Email Sender Reputation - How to Improve it?

“A bad email reputation is like a hangover: hard to get rid of, and it hurts everything else.” – Christ Marriott.

Grant Hatfield
September 5th, 2022

What is Email Deliverability, and How is it Calculated?

Every marketer raves about email marketing and how it tops the ROI charts.

Grant Hatfield
July 29th, 2022

12 Best Transactional Email Examples

Email marketing has become a synonym for promotional campaigns. That’s because marketers usually put all their eggs in that basket, hoping to secure maximum returns.

Grant Hatfield
May 9th, 2022

Best Email Deliverability Tools to Test & Improve Inbox Placement

Billions of emails are exchanged daily, and over 100 million are blocked too from reaching the subscriber’s inbox.

Saitej Makhijani
April 21st, 2022

Transactional Emails: Definition, Benefits, and Examples

While marketers spend hours perfecting their marketing emails, there is one thing they often overlook– transactional emails.

Grant Hatfield
April 21st, 2022

Email Deliverability Issues (With Best Practices to Solve Them)

Unlike Thomas from Magic Potion trying to sell me horoscope service and shorts to match the horoscope or Beth from the Secret Bank of Swiss asking for my credit card number and my mother’s maiden...

Grant Hatfield
June 27th, 2020