The Official OhMySMTP Blog

Written by Paul, founder of OhMySMTP
Follow my journey on Twitter

OhMySMTP now supports webhooks

November 16, 2021

We've added webhook support for emails

OhMySMTP now supports DMARC validation and List-Unsubscribe headers

November 03, 2021

In our relentless drive to improve email deliverability for our users, we've added support for DMARC and List-Unsubscribe headers

What happens when you send an email to spam?

October 20, 2021

An overview of what happens when you report an email as spam, and what a Feedback Loop (FBL) is

How to add code syntax highlighting to a website or blog

October 12, 2021

A guide to adding beautiful code blocks with syntax highlighting to a website, application or blog

How I learned to stop worrying and love TailwindCSS

October 11, 2021

Why TailwindCSS works for me, and a short history of how we all ended up here

How to get emails delivered

October 07, 2021

What we do to ensure our email deliverability remains high

What is Reverse DNS (rDNS) and how does it work?

October 06, 2021

A guide to Reverse DNS (rDNS) and PTR records

How to Verify Webhooks / Alerts in Ruby on Rails

October 05, 2021

A short guide to verifying payment provider webhooks and alerts in Ruby on Rails

Free Transactional Email Templates

September 27, 2021

A set of free MIT licensed transactional email templates, built using TailwindCSS

Modularizing a static website with HTML Modules and PostHTML

June 16, 2021

How to enhance a static set of HTML pages with HTML Modules and PostHTML

Send transactional emails using PHP

June 03, 2021

Launching our Swiftmailer PHP package 🚀

Testing Rails Gems against different versions of Rails

April 08, 2021

How we discovered the need and found a way to test our Rails Gem against different versions of Rails

OhMySMTP now supports tagging emails 🏷️

April 01, 2021

You can now tag / label emails that are sent through the OhMySMTP Transactional Email API

Your emails are probably not GDPR compliant

March 25, 2021

Sending an email with a tracking pixel is a violation of the GDPR, and more importantly violates recipient's privacy

How to catch spam with Rspamd

March 17, 2021

A simple guide to configuring the basic settings for the spam filtering system Rspamd

What's a DKIM Record?

February 21, 2021

DKIM records are DNS entries that help verify the origin domain of an email

Send attachments with transactional emails

February 18, 2021

📎📎📎 We now support sending attachments over email! 🥳🥳🥳🥳

What's an SPF Record? - Ultimate Guide to Email

February 08, 2021

SPF records are DNS records that help prevent SPAM and forged emails

Send emails over SMTP with

February 06, 2021

Our SMTP Server is now available 🚀🚀🚀

Send transactional emails with Node.js over OhMySMTP

February 04, 2021

Node.js package launch 🚀

Send emails with Rails over OhMySMTP

September 28, 2020

Launching our Ruby-on-Rails plugin 🚀