WordPress plugin comparison
Flex SMTP vs Email Deliverability
At a glance
- Email Deliverability has more active installs: 200K+, against fewer than 10 for Flex SMTP.
- On a typical day, Email Deliverability is downloaded about 934 times, Flex SMTP about 2.
- Flex SMTP has no reviews yet.
- Flex SMTP was updated more recently: Sep 16, 2026, against Jul 16, 2026 for Email Deliverability.
- Flex SMTP is tested with a newer WordPress: 7.1.4, against 7.0.8 for Email Deliverability.
- Email Deliverability has been around longer: since 2024, against 2026 for Flex SMTP.
Line by line
Email Deliverability leads on 4 of 6 comparable lines.
| Metric |  Flex SMTP |  Email Deliverability |
|---|---|---|
| Popular rank | #57,954 | #250 |
| Active installs | Fewer than 10 | 200K+ |
| Downloads, last 30 days | 42 | 26.6K |
| Rating | No ratings | 2.5(17) |
| Support threads resolved | – | – |
| Tested up to | 7.1.4 | 7.0.8 |
| Search multiplier | ×0.05 | ×0.90 |
| Last release | 1 month ago | 3 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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