WordPress plugin comparison
Custom SMTP vs SureMail
At a glance
- SureMail has more active installs: 200K+, against 200+ for Custom SMTP.
- On a typical day, SureMail is downloaded about 1,282 times, Custom SMTP about 13.
- Custom SMTP is rated higher: 5.0 out of 5 from 1 review, against 4.7 from 25 reviews.
- SureMail was updated more recently: Oct 8, 2026, against Aug 26, 2026 for Custom SMTP.
- Custom SMTP resolves more of its support threads: 100% in the last two months, against 50% for SureMail.
- SureMail is tested with a newer WordPress: 7.1.4, against 7.0.8 for Custom SMTP.
- Custom SMTP has been around longer: since 2024, against 2025 for SureMail.
Line by line
SureMail leads on 6 of 8 comparable lines.
| Metric |  Custom SMTP |  SureMail |
|---|---|---|
| Popular rank | #12,699 | #275 |
| Active installs | 200+ | 200K+ |
| Downloads, last 30 days | 285 | 50.2K |
| Rating | 5.0(1) | 4.7(25) |
| Support threads resolved | 100% | 50% |
| Tested up to | 7.0.8 | 7.1.4 |
| Search multiplier | ×0.54 | ×1.44 |
| Last release | 2 months ago | 1 month 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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