Your WordPress site says the email sent. No errors, no failures, the log shows green. But the recipient never got it.
This isn’t a sending problem, it’s a delivery problem, and the fix depends on where the email actually died. Walk through the diagnostic process: confirm what happened, decode the bounce, check authentication and reputation, and rule out the WordPress-specific quirks that break delivery.
MailerSend is a transactional email service built by the MailerLite team, and it’s quickly become one of the more popular mailer choices for WordPress sites.
But is it the right pick for you? In this MailerSend review, I cover everything you need to decide on: pricing, deliverability performance, and standout features like email verification and real-time activity logs.
I’ll also show you how to connect it to WordPress using WP Mail SMTP in under 12 minutes.
GDPR applies to every email your WordPress site sends. This guide covers consent, data handling, mailer agreements, and how to configure WP Mail SMTP to meet your compliance obligations.
Add a one-click feedback poll to any email your WordPress site sends. This tutorial walks you through building the form in WPForms, connecting it to Google Sheets for easy team access, and creating the links that capture votes through hidden fields. Works with transactional emails, newsletters, WooCommerce notifications, and more.
Use your favorite SMTP provider to reliably send your WordPress emails.
Gmail started rejecting unauthenticated emails at the server level in late 2025, and Microsoft and Yahoo have introduced similar rules. If your emails don’t pass SPF, DKIM, and DMARC checks, they won’t reach the inbox.
This guide covers what Gmail’s bulk sender requirements are, what changed in 2025 and 2026, and how to get your WordPress site compliant using WP Mail SMTP.
Wondering if your SMTP connection is actually working? Many WordPress users struggle with email delivery issues and need a reliable way to verify their setup.
Without proper testing, you might think your emails are sending fine when they’re actually failing silently. This can lead to missed notifications, lost sales, and frustrated users.
The good news is that testing your SMTP connection is straightforward with the right tools. WP Mail SMTP includes a built-in Email Test tool, but this guide explains how to use alternatives too.