10 Best Mailgun Alternatives in 2026
Updated September 7, 2026 · Ranked by how closely each plugin matches, from WordPress.org data · How this works
Mailgun has 80,000+ 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 Mailgun
- 1
FluentSMTP
Closest matchFluentSMTP – WP SMTP Plugin with Amazon SES, SendGrid, Mailgun, Postmark, Cloudflare, toSend, Gmail and Any SMTP
4.8 (400) 600,000+ active installsFree WP Mail SMTP plugin - fix WordPress email deliverability with Gmail, Amazon SES, SendGrid, Mailgun, Cloudflare, Postmark, Brevo and any SMTP.
Shares the mailgun, smtp tags on WordPress.org. About 7.5 times the installs, last updated 26 days ago.
- 2
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 mail, smtp tags on WordPress.org. 10,000+ installs against 80,000+, last updated 12 days ago.
- 3
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 mail, smtp tags on WordPress.org. A similar number of installs, last updated 17 days ago.
- 4
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 smtp tag on WordPress.org. A similar number of installs, last updated 5 days ago.
- 5
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 smtp tag on WordPress.org. A similar number of installs, last updated May 12, 2026.
- 6
Easy WP SMTP – WordPress SMTP and Email Logs: Gmail SMTP, Office 365, Outlook, Custom SMTP, and more
4.6 (707) 500,000+ active installsMake SMTP email sending and delivery easy. Configure Gmail SMTP, Outlook, Brevo, SendGrid, Mailgun, SendLayer or connect to any SMTP server.
Shares the smtp tag on WordPress.org. About 6.3 times the installs, last updated 26 days ago.
- 7
4.7 (365) 300,000+ active installsLog, view, and resend all emails sent from your WordPress site. Great for resolving email sending issues or keeping a copy for auditing.
Shares the smtp tag on WordPress.org. About 3.8 times the installs, last updated February 19, 2026.
- 8
Post SMTP
Paid version availablePost SMTP – Complete Email Deliverability and SMTP Solution with Email Logs, Alerts, Backup SMTP & Mobile App
4.7 (525) 300,000+ active installsImprove WordPress email deliverability. Connect Gmail SMTP, Microsoft 365, Brevo, SendGrid, Mailgun, Zoho, Amazon SES, etc. #1 WordPress SMTP Plugin.
Shares the smtp tag on WordPress.org. About 3.8 times the installs, last updated 13 days ago.
- 9
SMTP2GO 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 smtp tag on WordPress.org. About a third of the installs, last updated 7 days ago.
- 10
SureMail – SMTP and Email Logs Plugin with Amazon SES, Postmark, and Other Providers
4.7 (24) 200,000+ active installsSureMail – SMTP and Email Logs Plugin with Amazon SES, Postmark, and Other Providers
Shares the smtp tag on WordPress.org. About 2.5 times the installs, last updated 18 days ago.
Switching from Mailgun: common questions
What is the best alternative to Mailgun?
FluentSMTP is the closest match: it shares the same WordPress.org tags and has 600,000+ active installs with a 4.8 out of 5 rating.
Which Mailgun alternative has the most users?
FluentSMTP, with 600,000+ active installs reported by WordPress.org.
Which Mailgun 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 Mailgun 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 Mailgun 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 Mailgun 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
FluentSMTP is the closest match to Mailgun by the data we track, and FluentSMTP has the widest reach with 600,000+ active installs. Check & Log Email 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.