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Mailu/towncrier/newsfragments/1922.enhancement
Florent Daigniere 5e1ba9d4ff towncrier
2021-08-10 12:09:11 +02:00

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Add support for ECDSA certificates when letsencrypt is used. This means dropping compatibility for android < 4.1.1
Add LETSENCRYPT_SHORTCHAIN to your configuration to avoid sending ISRG Root X1 (this will break compatibility with android < 7.1.1)
Disable AUTH command on port 25
Disable TLS tickets, reconfigure the cache to improve Forward Secrecy
Prevent clear-text credentials from being sent to relays