WordPress plugin comparison
Dead-Letter vs SureMail
At a glance
- SureMail has more active installs: 200K+, against fewer than 10 for Dead-Letter.
- On a typical day, SureMail is downloaded about 1,226 times, Dead-Letter about 1.
- Dead-Letter has no reviews yet.
- SureMail was updated more recently: Oct 8, 2026, against Mar 11, 2020 for Dead-Letter.
- SureMail is tested with a newer WordPress: 7.1.4, against 5.3.27 for Dead-Letter.
- Dead-Letter has been around longer: since 2019, against 2025 for SureMail.
Line by line
SureMail leads on 6 of 6 comparable lines.
| Metric |  Dead-Letter |  SureMail |
|---|---|---|
| Popular rank | #71,795 | #275 |
| Active installs | Fewer than 10 | 200K+ |
| Downloads, last 30 days | 20 | 49.5K |
| Rating | No ratings | 4.7(25) |
| Support threads resolved | – | 50% |
| Tested up to | 5.3.27 | 7.1.4 |
| Search multiplier | ×0.00 | ×1.44 |
| Last release | 6 years ago | 1 month ago |
| Requires PHP | 5.4 | 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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