Dovecot and TLSv1 on ubuntu 22.04

Six002 six002 at protonmail.com
Thu Nov 24 10:31:35 UTC 2022


Hello,
I have ubuntu 22.04, dovecot 2.3.16 and old email client (Outlook 2013) and their dont support TLSv1_2.
In dovecot 10-ssl.conf i put: ssl_min_protocol = TLSv1,
in openssl.cnf i have:
openssl_conf = default_conf

[ default_conf ]
ssl_conf = ssl_section
[ssl_section]
system_default = ssl_default_sectq
[ssl_default_sect]
MinProtocol = TLSv1CipherString = DEFAULT:@SECLEVEL=1

but when i check openssl s_client -connect localhost:993 -tls1_1

have output:

CONNECTED(00000003)
803BD26AC67F0000:error:0A000126:SSL routines:ssl3_read_n:unexpected eof while reading:../ssl/record/rec_layer_s3.c:308:
---
no peer certificate available
---
No client certificate CA names sent
---
SSL handshake has read 0 bytes and written 111 bytes
Verification: OK
---
New, (NONE), Cipher is (NONE)
Secure Renegotiation IS NOT supported
Compression: NONE
Expansion: NONE
No ALPN negotiated
SSL-Session:
Protocol : TLSv1.1
Cipher : 0000
Session-ID:
Session-ID-ctx:
Master-Key:
PSK identity: None
PSK identity hint: None
SRP username: None
Start Time: 1668602712
Timeout : 7200 (sec)
Verify return code: 0 (ok)
Extended master secret: no
---

version tls1_2 and 1_3 works fine.
What I doing wrong?Thanks for help.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://dovecot.org/pipermail/dovecot/attachments/20221124/bb6d7cd6/attachment-0001.htm>


More information about the dovecot mailing list