Hi,
I am not sure if it is related to migration, but recently i start to see
something as this in my exim log:
TLS error on connection from hh.schlittermann.de [213.128.132.49]
(gnutls_handshake): A disallowed SNI server name has been received.
The recent one was today at 2021-10-16 01:51:16.
regards
--
Slavko
http://slavino.sk