Am Wed, 03 Mar 2010 13:26:26 +0100 schrieb Jeroen Massar: > Thomas Mueller wrote: >> hi >> >> customers phoned me that they could not send emails anymore. needed to >> switch to port 587. > > Maybe there is something filtering between you and them. They should be > using port 587 anyway which is supposed to be the submission port. > Unless they are running a fullblown SMTP setup on a DSL link of course.
yeah, nothing against port 587, but blocking port 25 without informing customers BEFORE is not the way to go. (most) mail-clients use port 25 if you do not specify it manually. maybe swisscom has reasons to do this - trojans/viruses sending spams maybe? > >> now heard from others that swisscom is blocking port 25 ??? what the >> heck is going on ? > > Which "others" and what metrics do they have? a colleague too got calls from customers not able to send mails anymore. take a look at this blog entry http://blog.neocid.li/?p=105 _______________________________________________ swinog mailing list [email protected] http://lists.swinog.ch/cgi-bin/mailman/listinfo/swinog
