WordPress plugin comparison
Kaddora MailFlow SMTP vs Solid Mail
At a glance
- Solid Mail has more active installs: 60K+, against 40+ for Kaddora MailFlow SMTP.
- On a typical day, Solid Mail is downloaded about 189 times, Kaddora MailFlow SMTP about 6.
- Kaddora MailFlow SMTP has no reviews yet.
- Kaddora MailFlow SMTP was updated more recently: Aug 24, 2026, against May 12, 2026 for Solid Mail.
- Kaddora MailFlow SMTP is tested with a newer WordPress: 7.0.8, against 6.9.11 for Solid Mail.
- Solid Mail has been around longer: since 2012, against 2026 for Kaddora MailFlow SMTP.
Line by line
Solid Mail leads on 4 of 6 comparable lines.
| Metric |  Kaddora MailFlow SMTP |  Solid Mail |
|---|---|---|
| Popular rank | #22,367 | #671 |
| Active installs | 40+ | 60K+ |
| Downloads, last 30 days | 136 | 5.4K |
| Rating | No ratings | 4.2(52) |
| Support threads resolved | – | 0% |
| Tested up to | 7.0.8 | 6.9.11 |
| Search multiplier | ×0.21 | ×0.87 |
| Last release | 2 months ago | 6 months ago |
| Requires PHP | 7.4 | 7.4 |
From WordPress.org's public data, refreshed every night. Downloads are WordPress.org's official daily figures for the last 30 days.
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