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 1,000+ 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
Gmail SMTP
Closest match4.1 (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 oauth, smtp tags on WordPress.org. About 10 times the installs, last updated 12 days ago.
- 2
4.6 (64) 10,000+ active installsSimple secure login and user management through your Google Workspace for WordPress (using oAuth2 and MFA if enabled).
Shares the oauth tag on WordPress.org. About 10 times the installs, no update since May 8, 2025.
- 3
5.0 (20) 5,000+ active installsAuthorizer limits login attempts, restricts access to specific users, and authenticates against external sources (OAuth2, Google, LDAP, or CAS).
Shares the oauth tag on WordPress.org. About 5 times the installs, last updated 4 days ago.
- 4
Swift SMTP (formerly Welcome Email Editor)
4.2 (68) 7,000+ active installsSwift SMTP is a free & simple SMTP Plugin for WordPress.
Shares the smtp tag on WordPress.org. About 7 times the installs, last updated December 1, 2025.
- 5
4.9 (45) 6,000+ active installsConfigure SMTP mailing in WordPress, including support for sending email via SSL/TLS (such as Gmail).
Shares the smtp tag on WordPress.org. About 6 times the installs, no update since July 22, 2024.
- 6
4.3 (36) 10,000+ active installsFix your email delivery problems by sending your WordPress emails through Amazon SES's powerful email sending infrastructure.
Shares the smtp tag on WordPress.org. About 10 times the installs, last updated 19 days ago.
- 7
4.6 (46) 2,000+ active installsA friendly SMTP plugin for WordPress. No third-party, simply using WordPress native possibilities.
Shares the smtp tag on WordPress.org. About 2 times the installs, last updated July 15, 2026.
- 8
4.5 (20) 700+ active installsCustom email and SMS notifications. Automatic send actions. WPForms SMS integration. WooCommerce notifications for purchases, abandoned cart and more!
Shares the smtp tag on WordPress.org. A similar number of installs, last updated 18 days ago.
- 9
YaySMTP – WP Mail SMTP with Email Logs, Tracking & Reports
4.9 (45) 10,000+ active installsFree WordPress SMTP plugin with email logs, open & click tracking, reports & charts, CSV export, and WooCommerce email preview.
Shares the smtp tag on WordPress.org. About 10 times the installs, last updated 15 days ago.
- 10
WP Extended – The Ultimate WordPress Toolkit
4.9 (28) 600+ active installsSMTP Email, Maintenance Mode, Duplicate Posts & Pages, Duplicate menu, Code Snippets, SVG File upload, Disable Gutenberg, Limit Login Attempts &am …
Shares the smtp tag on WordPress.org. About half the installs, last updated June 22, 2026.
Switching from WPO365: common questions
What is the best alternative to WPO365?
Gmail SMTP is the closest match: it shares the same WordPress.org tags and has 10,000+ active installs with a 4.1 out of 5 rating.
Which WPO365 alternative has the most users?
Gmail SMTP, with 10,000+ active installs reported by WordPress.org.
Which WPO365 alternative is rated highest?
Login for Google Apps, rated 4.6 out of 5 by 64 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
Gmail SMTP is the closest match to WPO365 by the data we track, and Gmail SMTP has the widest reach with 10,000+ active installs. Authorizer shipped the most recent release, on September 2, 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.