After upgrade I was unable se to send mails through my sendmail, from both OSX 10.10.4 and upgraded iOS9 …
this was in my sendmail log:
Jul 12 19:58:03 orin sendmail: STARTTLS=server, error: accept failed=0, SSL_error=1, errno=0, retry=-1 Jul 12 19:58:03 orin sendmail: STARTTLS=server: 12164:error:14094410:SSL routines:SSL3_READ_BYTES:sslv3 alert handsh ake failure:s3_pkt.c:1053:SSL alert number 40
fix is amazingly easy and effective:
generate dh2048 certificate:
openssl gendh -out dh_2048.pem -2 2048
and add to sendmail.mc:
then recompile your .mc and restart sendmail.