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Best WordPress Plugins for Phpmailer

15 plugins compared · Updated August 2026 · Phpmailer

All Free only 15 Premium only

Choosing a WordPress plugin for phpmailer comes down to a few things: whether it is still actively maintained, whether real users rate it well, and whether it does the specific job you need without dragging the rest of the site down.

We ranked 15 plugins using our WPScore, which weighs the user rating (adjusted for how many people actually rated it), how many sites run it, how recently it was updated, and which WordPress version it is tested against. 15 of them have enough public data to be scored; the rest are listed below the ranked block, clearly marked, rather than being given a number we cannot justify.

How this list is funded. Some links here earn us a commission if you buy. It costs you nothing extra, and it does not move anything up the list — the order comes from the WPScore, which is calculated from public ratings, install counts and update history. See the method.

At a glance

  1. 1. SMTP Mailer Best overall 87/100
  2. 2. WPO365 85/100
  3. 3. SAR Friendly SMTP 81/100
  4. 4. Zoho Mail for WordPress 78/100
  5. 5. Stop WP Emails Going to Spam 78/100
  6. 6. Zoho ZeptoMail 77/100
  7. 7. Simple SMTP by Maileroo 76/100
  8. 8. MailerSend 75/100
  9. 9. SMTP Mail Control for MailPoet 71/100
  10. 10. SMTP.com 69/100
  11. 11. Send From 68/100
  12. 12. Improve Email Spam Score 61/100
  13. 13. Configure SMTP 60/100
  14. 14. wp_mail return-path 59/100
  15. 15. Display wp_mail Error Messages 52/100
1 SMTP Mailer
Best overall Free by Noor Alam

SMTP Mailer

Configure a SMTP server to send email from your WordPress site. Configure the wp_mail() function to use SMTP instead of the PHP mail() function.

4.6★
from 67 ratings
70k+
active installs
Updated
Aug 2026
Tested to
WP 7.1
87

WPScore

Read review View on WordPress.org
2 WPO365
Free by Marco van Wieren

WPO365

Send WordPress emails from a M365 / Exchange Online Mailbox using Microsoft Graph, leveraging OAuth for authentication which is more secure than SMTP

4.9★
from 39 ratings
10k+
active installs
Updated
Jul 2026
Tested to
WP 7.0.4
85

WPScore

Read review View on WordPress.org
3 SAR Friendly SMTP
Free by Samuel Aguilera

SAR Friendly SMTP

A friendly SMTP plugin for WordPress. No third-party, simply using WordPress native possibilities.

4.6★
from 46 ratings
2k+
active installs
Updated
Jul 2026
Tested to
WP 7.0.4
81

WPScore

Read review View on WordPress.org
4 Zoho Mail for WordPress
Free by Zoho Mail

Zoho Mail for WordPress

Zoho Mail Plugin lets you configure your Zoho Mail account on your WordPress site enabling you to send the email via Zoho Mail API.

3.8★
from 41 ratings
20k+
active installs
Updated
May 2026
Tested to
WP 6.9.7
78

WPScore

Read review View on WordPress.org
6 Zoho ZeptoMail
Free by Zoho Mail

Zoho ZeptoMail

Zoho ZeptoMail Plugin lets you configure your ZeptoMail account on your WordPress site enabling you to send transactional emails of your site via Zept …

5★
from 4 ratings
5k+
active installs
Updated
May 2026
Tested to
WP 6.8.8
77

WPScore

Read review View on WordPress.org
7 Simple SMTP by Maileroo
Free by Areeb Majeed

Simple SMTP by Maileroo

Ensure seamless WordPress email delivery with our all-in-one SMTP plugin, compatible with Gmail, Outlook, Maileroo, SendGrid, Mailgun, and more!

5★
from 4 ratings
700+
active installs
Updated
Mar 2026
Tested to
WP 6.9.7
76

WPScore

Read review View on WordPress.org
8 MailerSend
Free by MailerSend

MailerSend

Improve your deliverability and avoid the spam box with MailerSend’s SMTP server. Check your analytics to improve your emails for better conversion!

2.8★
from 12 ratings
2k+
active installs
Updated
Jun 2026
Tested to
WP 6.9.7
75

WPScore

Read review View on WordPress.org
10 SMTP.com
Free by SMTP.com

SMTP.com

SMTP.com is a powerful and reliable SMTP delivery service that enables you to send and track high volume emails effortlessly.

4★
from 7 ratings
80+
active installs
Updated
Feb 2026
Tested to
WP 6.9.7
69

WPScore

Read review View on WordPress.org
11 Send From
Free by Benjamin Buddle

Send From

Plugin for modifying the from line on all emails coming from WordPress.

5★
from 8 ratings
500+
active installs
Updated
Oct 2025
Tested to
WP 6.4.10
68

WPScore

Read review View on WordPress.org
12 Improve Email Spam Score
Free by Teet Bergmann

Improve Email Spam Score

This plugin adds a email return-path and envelope-from address to the wp_mail () function. Which reduces the spam score sent from your website form.

200+
active installs
Updated
Jan 2026
Tested to
WP 6.8.8
61

WPScore

Read review View on WordPress.org
13 Configure SMTP
Free by Scott Reilly

Configure SMTP

Configure SMTP mailing in WordPress, including support for sending email via SSL/TLS (such as Gmail).

4.9★
from 45 ratings
6k+
active installs
Updated
Jul 2024
Tested to
WP 6.5.10
60

WPScore

Read review View on WordPress.org
14 wp_mail return-path
Free by barnz99

wp_mail return-path

Simple plugin that correctly sets the return-path header when using wp_mail. Mitigates the "via" and "The actual sender of" Notif …

5★
from 9 ratings
5k+
active installs
Updated
Dec 2023
Tested to
WP 6.3.10
59

WPScore

Read review View on WordPress.org