WordPress plugin comparison
Custom SMTP vs Solid Mail
At a glance
- Solid Mail has more active installs: 60K+, against 200+ for Custom SMTP.
- On a typical day, Solid Mail is downloaded about 189 times, Custom SMTP about 13.
- Custom SMTP is rated higher: 5.0 out of 5 from 1 review, against 4.2 from 52 reviews.
- Custom SMTP was updated more recently: Aug 26, 2026, against May 12, 2026 for Solid Mail.
- Custom SMTP resolves more of its support threads: 100% in the last two months, against 0% for Solid Mail.
- Custom 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 2024 for Custom SMTP.
Line by line
Level: each leads on 4 of 8 comparable lines.
| Metric |  Custom SMTP |  Solid Mail |
|---|---|---|
| Popular rank | #12,697 | #671 |
| Active installs | 200+ | 60K+ |
| Downloads, last 30 days | 277 | 5.2K |
| Rating | 5.0(1) | 4.2(52) |
| Support threads resolved | 100% | 0% |
| Tested up to | 7.0.8 | 6.9.11 |
| Search multiplier | ×0.54 | ×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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