WordPress plugin comparison
Kaddora MailFlow SMTP vs SMTP Mailer
At a glance
- SMTP Mailer has more active installs: 70K+, against 40+ for Kaddora MailFlow SMTP.
- On a typical day, SMTP Mailer is downloaded about 430 times, Kaddora MailFlow SMTP about 6.
- Kaddora MailFlow SMTP has no reviews yet.
- SMTP Mailer was updated more recently: Sep 7, 2026, against Aug 24, 2026 for Kaddora MailFlow SMTP.
- SMTP Mailer is tested with a newer WordPress: 7.1.4, against 7.0.8 for Kaddora MailFlow SMTP.
- SMTP Mailer has been around longer: since 2015, against 2026 for Kaddora MailFlow SMTP.
Line by line
SMTP Mailer leads on 6 of 6 comparable lines.
| Metric |  Kaddora MailFlow SMTP |  SMTP Mailer |
|---|---|---|
| Popular rank | #22,367 | #584 |
| Active installs | 40+ | 70K+ |
| Downloads, last 30 days | 139 | 12.7K |
| Rating | No ratings | 4.6(67) |
| Support threads resolved | – | 0% |
| Tested up to | 7.0.8 | 7.1.4 |
| Search multiplier | ×0.21 | ×1.06 |
| Last release | 2 months ago | 2 months ago |
| Requires PHP | 7.4 | – |
From WordPress.org's public data, refreshed every night. Downloads are WordPress.org's official daily figures for the last 30 days.
Tags they share
More comparisons
Is one of these yours?
Track your plugin against its rivals every day: rank, installs, downloads, ratings and their releases, with alerts when anything moves.
Start free