WordPress plugin comparison
Mailkeep vs Solid Mail
At a glance
- Solid Mail has more active installs: 60K+, against fewer than 10 for Mailkeep.
- On a typical day, Solid Mail is downloaded about 189 times, Mailkeep about 3.
- Mailkeep has no reviews yet.
- Mailkeep was updated more recently: Sep 26, 2026, against May 12, 2026 for Solid Mail.
- Mailkeep is tested with a newer WordPress: 7.1.4, against 6.9.11 for Solid Mail.
- Solid Mail has been around longer: since 2012, against 2026 for Mailkeep.
Line by line
Solid Mail leads on 4 of 6 comparable lines.
| Metric |  Mailkeep |  Solid Mail |
|---|---|---|
| Popular rank | #62,882 | #671 |
| Active installs | Fewer than 10 | 60K+ |
| Downloads, last 30 days | 63 | 5.3K |
| Rating | No ratings | 4.2(52) |
| Support threads resolved | – | 0% |
| Tested up to | 7.1.4 | 6.9.11 |
| Search multiplier | ×0.05 | ×0.87 |
| Last release | 1 month 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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