Am 05.01.2015 um 15:10 schrieb Matthias Schneider: > Hello, > > I noticed that many Exchange Servers nowadays have problems with TLS. Is > there a way to make a fallback to plain if there is a timeout on MAIL > FROM? I currently use smtp_tls_security_level=may > > I found some 100's domains on different IPs which have this problems > right now, here is a example server: > > 15F5450139E: to=<x...@kindersleytransport.com>, > relay=mail.kindersleytransport.com[207.195.36.62]:25, delay=244097, > delays=244096/0/1.1/0.16, dsn=4.4.2, status=deferred (lost connection > with mail.kindersleytransport.com[207.195.36.62] while sending MAIL FROM) > > I can also verify this when i do a "openssl s_client -starttls smtp > -connect mail.kindersleytransport.com:25 -debug" > the TLS initiation works but when you enter MAIL FROM: t...@example.com > you will get an timeout. > When using just a simple telnet without TLS, sending mails will work fine! > > all this servers are showing the same (old?) version: "Microsoft ESMTP > MAIL Service, Version: 6.0.3790.4675" > Maybe there is a way to disable STARTTLS when this prompt is shown? > > Best regards > > Matthias Schneider >
you may workaround with transport and special target tls_policy Best Regards MfG Robert Schetterer -- [*] sys4 AG http://sys4.de, +49 (89) 30 90 46 64 Franziskanerstraße 15, 81669 München Sitz der Gesellschaft: München, Amtsgericht München: HRB 199263 Vorstand: Patrick Ben Koetter, Marc Schiffbauer Aufsichtsratsvorsitzender: Florian Kirstein
