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Lettr – Email API vs Email Deliverability – SMTP Replacement, Email API Deliverability & Email Log
Head-to-head on the signals that matter, from the public WordPress.org data.
Lettr – Email API
vojtechj
B80
Email Deliverability – SMTP Replacement, Email API Deliverability & Email Log
Elementor
B75
Download trajectory
Lettr – Email API Email Deliverability – SMTP Replacement, Email API Deliverability & Email Log
7-day average downloads, each indexed to 100 at the start of the window. A line above 100 is growing, below 100 is shrinking.
| Metric | Lettr – Email API | Email Deliverability –… |
|---|---|---|
| Health score | 80 (B) ● | 75 (B) |
| Est. active installs | 0–0 | 200K–300K ● |
| Total downloads | 198 | 2.3M ● |
| Downloads · 30d | 33 | 193.0K ● |
| Momentum | — | +34% ● |
| Rating (adjusted) | 3.60★ ● | 2.99★ |
| Reviews | 0 | 16 ● |
| Last updated | 2mo ago | yesterday ● |
| Support resolved | — ● | — |
| Requires PHP | 7.2 | 7.4 |
● marks the leader on each row.