Simple SMTP — WordPress Email Plugin
by Casey · WordPress.org page · Website
Simple SMTP has 2,000+ active installs on WordPress.org and 35,589 downloads all time. We have tracked it since September 4, 2026; download trends appear after 30 days of data. The last update was on August 11, 2025, tested up to WordPress 6.8.8.
Simple SMTP at a glance
Is Simple SMTP well maintained?
Features
The feature list from the plugin's own readme on WordPress.org, trimmed to the essentials.
- SMTP_HOST (string) Mail server hostname
- SMTP_PORT (integer) Port address (usually 25, 465 or 587)
- SMTP_AUTH (integer, 1 or 0) Pass below credentials to your mail server
- SMTP_USER (string) The mail username for this account
- SMTP_PASS (string) The password for the mailer account
- SMTP_FROM (string) Enforce all emails come from this email address
- SMTP_FROMNAME (string) Enforce all emails to have a certain email name
- SMTP_SEC (string) Use a particular email security method (accepts ‘def’ (default), ‘ssl’, ‘tls’ and ‘off’)
- SMTP_NOVERIFYSSL (boolean) Disable validation of the SMTP server certificate (not recommended)
- SMTP_LOG (boolean) Controls the logging capability and visibility
- SMTP_DISABLE (boolean) Disables the mailer. They will still be logged if enabled, but won’t send out
Simple SMTP reviews and ratings
11 reviews on WordPress.org, with the most recent ones as their authors posted them.
11 reviews
- 5★
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11
- 4★
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0
- 3★
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- 2★
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0
- 1★
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Clean, No Ads！！！
Perfectly and elegantly meets my needs, the best STMP plugin I've used so far.
guguan123 -
Perfect for local Email solution
The Simple SMTP plugin truly lives up to its name, offering a straightforward and effective solution for managing email communications, especially when paired with MailPit. I’ve been using it locally with great success, and it has become an indispensable tool in my workflow.
alexmigf -
Simple and effective
Thank you for developing this module, it works great and currently it doesn't include many other things that could bloat the site.
Dan Claudiu G. -
Perfect plugin for WP email
Lots of bloated SMTP plugins happy to take your money. I appreciate the heck out of this free plugin. It's open source, works perfect, and does the job needed and only the job needed.
zoomstop -
Works in multisite
Does what it says.
lenasterg -
Simply, Clean, straightforward, No Ads!
As it titles, Why need complex UI and dirt on other plugin. go for this one, it's support WP-CLI. Save my day debuging host and mail server connection.
Montri Udomariyah
Where Simple SMTP ranks on WordPress.org
The rankings we track that Simple SMTP appears in, and how its position changed over 30 days.
| Ranking | WordPress.org placement | Position | 30 days |
|---|---|---|---|
| Best Email Plugins | #89 by tag, #29 in search | #25 | – |
Simple SMTP alternatives
Plugins that solve the same problem, ranked by how closely they overlap with Simple SMTP.
-
Gmail SMTP 10,000+ installs · 4.1 -
SMTP Mailer 70,000+ installs · 4.6 -
Configure SMTP 6,000+ installs · 4.9 -
SAR Friendly SMTP 2,000+ installs · 4.6 -
WPO365 10,000+ installs · 4.9
Details
Adds a simple mail configuration panel into your WordPress installation. Supports temporary logging and config variables.
The full description, screenshots and every review live on the WordPress.org page.
Rankings Simple SMTP competes in
Tags
- dispatch
- sender
- smtp
More from Casey
-
OpenSimulator Bridge fewer than 10 installs
- Version
- 1.3.4.1
- Last updated
- Aug 11, 2025
- First published
- Mar 17, 2020
- Requires WordPress
- 5.0
- Tested up to
- 6.8.8
- Requires PHP
- 7.0
- Pricing
- Free on WordPress.org
Simple SMTP FAQ
What does Simple SMTP do?
According to its WordPress.org readme, Simple SMTP offers SMTP_HOST (string) Mail server hostname, SMTP_PORT (integer) Port address (usually 25, 465 or 587), SMTP_AUTH (integer, 1 or 0) Pass below credentials to your mail server, SMTP_USER (string) The mail username for this account and SMTP_PASS (string) The password for the mailer account.
How many active installs does Simple SMTP have?
WordPress.org reports 2,000+ active installs for Simple SMTP as of September 7, 2026.
Is Simple SMTP still maintained?
The last release was on August 11, 2025, more than a year ago. WordPress.org shows a warning on plugins that go this long without an update.
Does Simple SMTP have good support?
On the WordPress.org forum, 0 of 1 recent support threads for Simple SMTP are marked resolved. That is the developer's free support; a paid version usually comes with its own channel.
Is Simple SMTP free?
Simple SMTP is free to install from WordPress.org. Many plugins also sell a paid version or add-ons.
Where does Simple SMTP rank among Email Plugins?
Simple SMTP is #25 in the WordPress.org Email Plugins ranking.