> Could you please check whether ugrading libgnutls30 to 3.5.5-3 fixes the > issue?
libgnutls30 upgraded to 3.5.5-3: > ii libgnutls30:amd64 3.5.5-3 amd64 GNU TLS library - main runtime library The patch doesn't do the trick. Same error messages. Client side (exim 4.84.2-2+deb8u1): > SMTP<< 220 TLS go ahead > LOG: MAIN > TLS error on connection to ... [...] (gnutls_handshake): An unexpected TLS handshake packet was received. Server side (4.87-3+b1): > Okt 25 06:40:07 ... exim[14817]: 2016-10-25 06:40:07 TLS error on connection from (...) [...] (gnutls_handshake): Error in the pull function. After downgrading again to 3.5.4-2 all mails got transmitted.
