MailerSend — WordPress Email Plugin
MailerSend – Official SMTP Integration
by MailerSend · WordPress.org page
MailerSend has 2,000+ active installs on WordPress.org and 27,466 downloads all time. We have tracked it since September 4, 2026; download trends appear after 30 days of data. The last update was on June 26, 2026, tested up to WordPress 6.9.7.
MailerSend at a glance
Is MailerSend well maintained?
Features
The feature list from the plugin's own readme on WordPress.org, trimmed to the essentials.
- Avoid spam filters, prevent blocklisting, and lower hard bounce rates with powerful sending infrastructure
- Automate the customer experience by connecting to thousands of other apps with Zapier
- Get instant push updates with webhooks
- Receive customer replies sent to your domain with an inbound route feature
- Monitor all email interactions such as opens, clicks, open locations and devices. Plus, use your own subdomain and get a custom tracking link!
MailerSend reviews and ratings
12 reviews on WordPress.org, with the most recent ones as their authors posted them.
12 reviews
- 5★
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4
- 4★
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1
- 3★
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1
- 2★
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1
- 1★
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5
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Doesn't work
All set up but nothing arrives except the test email.
primerpizza -
3 templates for plan free
3 templates for plan free is a Joke..
faelmarcondeli -
Plugin Ok, company not
As far as I could see, the plugin seems to work Ok, it's a shame I can't say the same for the 'practices' of the company.
Nico_S -
Great Plugin Needs Some Polish
The mailersend application is fantastic. I can't speak highly enough about deliverability and functionality. However, if you are using this as a transactional email system for WooCommerce you cannot use the mailersend templates (which are particularly good) and have Mailersend send other WordPress-related emails, such as comment notifications and other emails such as Gravity Form entries. You cannot run this plugin and the MailerSend WooCommerce plugin together as it will create a critical WordPress error on transactional email sends. This seems like an oversight and I'm not really sure why these two plugins cannot be one and handle not only transactional WooCommerce but also WordPress emails.
savagemic -
Easy to use. Works like a charm!
I don't understand why reviewers gave this plugin a negative review "for not working" because it works perfectly. They must have forgotten to verify their account with MailerSend. The domain verification and account approval took less than a day to complete and I could send out emails in a blink of an eye. I switched to MailerSend because my Namecheap SMTP took twice the amount of time to post my contact form. With MailerSend, form submission takes 3-4 seconds. Kudos and thumbs up to the developers! I highly recommend MailerSend!
xyrik -
Crappy plugin. Can't even begin to use it properly.
I have a mailersend account. I checked my creds many times and set them correctly in the plugin. But every time I test I get "wp_mail_failed - SMTP Error: Could not authenticate."
vikx01
Where MailerSend ranks on WordPress.org
The rankings we track that MailerSend appears in, and how its position changed over 30 days.
| Ranking | WordPress.org placement | Position | 30 days |
|---|---|---|---|
| Best Email Plugins | #93 by tag, #24 in search | #24 | – |
MailerSend alternatives
Plugins that solve the same problem, ranked by how closely they overlap with MailerSend.
-
WPO365 10,000+ installs · 4.9 -
Configure SMTP 6,000+ installs · 4.9 -
SAR Friendly SMTP 2,000+ installs · 4.6 -
SMTP2GO 30,000+ installs · 5.0 -
SMTP Mailer 70,000+ installs · 4.6
Details
Improve your deliverability and avoid the spam box with MailerSend’s SMTP server. Check your analytics to improve your emails for better conversion!
The full description, screenshots and every review live on the WordPress.org page.
Rankings MailerSend competes in
Tags
- mailersend
- phpmailer
- smtp
- wp_mail
More from MailerSend
-
MailerSend 100+ installs
- Version
- 1.0.8
- Last updated
- Jun 26, 2026
- First published
- Oct 20, 2021
- Requires WordPress
- 5.7
- Tested up to
- 6.9.7
- Requires PHP
- 7.2.5
- Pricing
- Free on WordPress.org
MailerSend FAQ
What does MailerSend do?
According to its WordPress.org readme, MailerSend offers Avoid spam filters, prevent blocklisting, and lower hard bounce rates with powerful sending infrastructure, Automate the customer experience by connecting to thousands of other apps with Zapier, Get instant push updates with webhooks, Receive customer replies sent to your domain with an inbound route feature and Monitor all email interactions such as opens, clicks, open locations and devices. Plus, use your own subdomain and get a custom tracking link!.
How many active installs does MailerSend have?
WordPress.org reports 2,000+ active installs for MailerSend as of September 7, 2026.
Is MailerSend still maintained?
Yes. The last release was on June 26, 2026 and it is tested up to WordPress 6.9.7.
Is MailerSend free?
MailerSend is free to install from WordPress.org. Many plugins also sell a paid version or add-ons.
Where does MailerSend rank among Email Plugins?
MailerSend is #24 in the WordPress.org Email Plugins ranking.