# Use of PQC in SMTP STARTTLS

DevFeed: [Use of PQC in SMTP STARTTLS](<https://devfeed.tech/articles/use-of-pqc-in-smtp-starttls-30255.md>)

Original publisher: [Read original article](<https://www.netmeister.org/blog/smtp-pqc.html>)

Published: 2026-01-23T19:54:53Z

Content type: article

Language: en

Sources: [Signs of Triviality](<https://devfeed.tech/sources/signs-of-triviality.md>)

Topics: [Post-quantum cryptography](<https://devfeed.tech/topics/post-quantum-cryptography.md>), [Post-Quantum](<https://devfeed.tech/topics/post-quantum.md>), [servers](<https://devfeed.tech/topics/servers.md>)

Tags: [cryptography](<https://devfeed.tech/tags/cryptography.md>), [post-quantum](<https://devfeed.tech/tags/post-quantum.md>), [post-quantum-cryptography](<https://devfeed.tech/tags/post-quantum-cryptography.md>), [servers](<https://devfeed.tech/tags/servers.md>), [smtp](<https://devfeed.tech/tags/smtp.md>)

## AI overview

A quick summary of which SMTP servers among the Top 1M domains use post-quantum cryptography for STARTTLS.

## Source excerpt

A quick summary of which SMTP servers amongst the Top1M domains uses post-quantum cryptography for STARTTLS.