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async-smtp

v0.10.2 Growing

SMTP client

MIT OR Apache-2.0 Edition 2021
Email #email#smtp#mailer

Quick Verdict

  • !Pre-1.0: API may have breaking changes
  • โœ“Trusted by 104 crates
  • โœ“Permissive license (MIT OR Apache-2.0)

Security

Checking security advisories...
Downloads
427.9K
Dependents
104
Releases
17
Size
31KB

Deep Insights

๐Ÿ“ˆ
Strong growth momentum

32.6K downloads in the last 30 days (1.1K/day), up 76% from the previous period.

๐Ÿ”—
Moderate adoption

104 crates depend on async-smtp. Reasonable ecosystem adoption, though not yet a core dependency.

๐Ÿ‘ค
Prolific maintainer

The primary maintainer publishes 124 crates. This suggests deep Rust expertise and long-term commitment to the ecosystem.

๐Ÿ”ฌ
Pre-1.0 for over a year

Despite being 6+ years old, async-smtp hasn't reached 1.0 yet. Expect potential API changes between versions.

๐Ÿ“
Compact crate

At 30KB, async-smtp is lightweight. Small crate size correlates with focused, well-scoped functionality.

๐ŸŒŸ
Used by top crates

Notable dependents include check-if-email-exists, legba, mailify-lib, dust-mail, minismtp. When high-quality crates choose async-smtp, it's a strong quality signal.

Health Breakdown

Maintenance 7/25

Recency, release consistency, active ratio

Quality 15/25

Yanked ratio, deps, size, maturity, features

Community 13/20

Reverse deps, ownership, ecosystem

Popularity 7/15

Downloads, momentum, growth trend

Documentation 10/15

Docs, repo, license, metadata

Download Trend

Daily downloads ยท last 90 days
686/day avg+147%
05001K2K2K3K12/291/162/32/213/113/28

Top Dependents

Version Adoption

v0.6.0
43%
v0.10.2
18%
v0.4.0
14%
v0.9.0
13%
v0.5.0
12%

Release Timeline

17 releasessince 2019
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2019
1
2020
6
2021
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2022
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2023
3
2024
3
2025
2
2026
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Feature Flags

default =["runtime-tokio"]

runtime-tokio*runtime-async-std

README

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Maintainers

Dependencies
14
direct dependencies
Dependents
104
crates depend on async-smtp

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