Crates / sendgrid / Alternatives
Rust crate alternatives · data Oct 27, 2026
Alternatives to sendgrid
Short answerThe closest alternatives to sendgrid on crates.io data are lettre (89.5K real downloads a day), resend-rs (4.1K real downloads a day), postmark (133 real downloads a day). Of the 4 we list, the most used is lettre, and 4 shipped a release in the last year. sendgrid itself gets 1,719 a day with 6 dependents.
Every alternative we found
| Alternative | Real downloads a day | vs sendgrid | Dependents | Last release | Why it is listed | |
|---|---|---|---|---|---|---|
| lettre Established | 89,482 | 52.05x | 494 | 3mo | keyword "email" | compare |
| resend-rs Pulled in | 4,094 | 2.38x | 8 | 9d | keyword "email" | compare |
| postmark Pulled in | 133 | 0.08x | 1 | 5mo | keyword "email" | compare |
| mailgun-rs Pulled in | 60 | 0.03x | 0 | 9mo | keyword "email" | compare |
How to choose
- Same job, not the same API. Each line is listed because it shares a crates.io category or keyword with sendgrid; read its description before you swap.
- More dependents means more answered questions and a smaller chance it disappears.
- Check the last release against how fast you need fixes. For sendgrid: is it still maintained?
Rules
Alternatives = tracked crates (top 1000 by downloads) that share a specific crates.io category (2 points each) or keyword (3 points each) with sendgrid, most similar first; its own parts (same name prefix) and crates it depends on or that depend on it are left out, because those are companions, not substitutes. Real downloads = quiet-day median, crates.io data Oct 27, 2026. Built when we find 3 or more.
Up next
The closest alternative: Established and steady. 89,482 real downloads a day.lettreRust crate. Email client. Real use: 89.5K downloads a day on quiet days; 494 crates depend on it.Read it next →Also worth your time
Art: Nicholas Roerich, Nag Lake (1925). Public domain, via Wikimedia Commons.
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