10 Best WPO365 Alternatives in 2026
Updated September 7, 2026 · Ranked by how closely each plugin matches, from WordPress.org data · How this works
WPO365 has 10,000+ active installs on WordPress.org. These 10 plugins share its category or its tags on WordPress.org, are actively maintained, and each has at least 100 active installs. They are ordered by how closely they match, not by our opinion.
The 10 closest alternatives to WPO365
- 1
SMTP2GO
Closest matchSMTP2GO for WordPress – Email Made Easy
5.0 (66) 30,000+ active installsResolve email delivery issues, increase inbox placement, track sent email, get 24/7 support, and real-time reporting.
Shares the email, smtp, wp_mail tags on WordPress.org. About 3 times the installs, last updated 7 days ago.
- 2
4.9 (45) 6,000+ active installsConfigure SMTP mailing in WordPress, including support for sending email via SSL/TLS (such as Gmail).
Shares the email, phpmailer, smtp tags on WordPress.org. About half the installs, no update since July 22, 2024.
- 3
4.6 (46) 2,000+ active installsA friendly SMTP plugin for WordPress. No third-party, simply using WordPress native possibilities.
Shares the email, phpmailer, smtp tags on WordPress.org. About a quarter of the installs, last updated July 15, 2026.
- 4
4.6 (67) 70,000+ active installsConfigure a SMTP server to send email from your WordPress site. Configure the wp_mail() function to use SMTP instead of the PHP mail() function.
Shares the email, phpmailer, smtp tags on WordPress.org. About 7 times the installs, last updated 17 days ago.
- 5
4.8 (51) 10,000+ active installsFixes WordPress emails going to spam/junk folders. The default settings often resolve the issue.
Shares the email, phpmailer tags on WordPress.org. A similar number of installs, last updated 4 days ago.
- 6
Check & Log Email – Easy Email Testing & Mail logging
4.8 (290) 100,000+ active installsCheck & Log email allows you to test if your website is correctly sending emails . Overriding of email headers and carbon copying to another address.
Shares the email, smtp tags on WordPress.org. About 10 times the installs, last updated 5 days ago.
- 7
Solid Mail – SMTP email and logging made by SolidWP
4.2 (52) 60,000+ active installsEmail deliverability made SOLID. Connect to your chosen email provider with an intuitive set-it-and-forget-it SMTP plugin.
Shares the email, smtp tags on WordPress.org. About 6 times the installs, last updated May 12, 2026.
- 8
4.1 (103) 10,000+ active installsConnect to Gmail SMTP server to automatically send email from your WordPress site. Configure wp_mail() to use SMTP with OAuth 2.0 authentication.
Shares the email, smtp tags on WordPress.org. A similar number of installs, last updated 12 days ago.
- 9
4.7 (30) 60,000+ active installsThe officially-supported ActiveCampaign Postmark plugin for Wordpress.
Shares the email, smtp, wp_mail tags on WordPress.org. About 6 times the installs, no update since November 18, 2024.
- 10
Contact Form & SMTP Plugin for WordPress by PirateForms
4.7 (223) 30,000+ active installsA simple and effective WordPress contact form & SMTP plugin. Compatible with best themes out there, is both a secure and responsive contact form p …
Shares the smtp tag on WordPress.org. About 3 times the installs, no update since January 20, 2025.
Switching from WPO365: common questions
What is the best alternative to WPO365?
SMTP2GO is the closest match: it shares the same WordPress.org tags and has 30,000+ active installs with a 5.0 out of 5 rating.
Which WPO365 alternative has the most users?
Check & Log Email, with 100,000+ active installs reported by WordPress.org.
Which WPO365 alternative is rated highest?
SMTP2GO, rated 5.0 out of 5 by 66 reviewers. Only plugins with at least 50 reviews are counted.
Are these WPO365 alternatives free?
Every plugin listed here is free to install from WordPress.org. Where WordPress.org marks a plugin as commercial, the developer also sells a paid version or add-ons, and that is shown on each plugin.
How are alternatives chosen?
Automatically, from WordPress.org data: plugins that share a category top 10 with WPO365 score highest, then plugins that appear in the same WordPress.org rankings, then plugins with the same tags, weighted so rare tags count more than common ones. Plugins by the same author and plugins rated under 4.0 are left out.
How we choose these alternatives
Nothing on this page is picked by hand. Every day we walk the whole WordPress.org directory, then score every plugin against WPO365 on three signals: sharing a category top 10 counts most, then appearing in the same WordPress.org rankings, then carrying the same tags, with rare tags counting for more than common ones like "wordpress". Plugins by the same author are excluded, so an author's own add-ons cannot fill the list, and so is anything rated below 4.0 or with fewer than 100 active installs. The ten highest scores are what you see, in that order. Full methodology.
The bottom line
SMTP2GO is the closest match to WPO365 by the data we track, and Check & Log Email has the widest reach with 100,000+ active installs. Stop WP Emails Going to Spam shipped the most recent release, on September 3, 2026. The list is rebuilt every day from WordPress.org, so a plugin that stops being maintained drops out on its own.
Weekly · free
What moved this week
One email a week, built from the same daily snapshots these rankings come from: the plugins that climbed, what launched, and one ranking worth a look.