Am 08.02.2013 09:29, schrieb Angel L. Mateo: > Hello, > > I have list servers that send mails through another relay servers. > With this configuration all mail sent from our mail servers are > delivered through our relay servers. All servers use postfix (list > servers use 2.7.0 and relay 2.5.5) > > We are having problems with dns lookups to one domain. I know is not > a postfix problem, but a dns configuration error in that domain. But it > is affecting our servers. > > The problem is that whenever the relay server receives a mail > directed to that domain, I get the error "conversation with <mail > server> timed out while sending MAIL FROM". And as list server group > messages, all recipients in that group as rejected.
as workaround you can use a a deditacted transport for that domain > > I've been looking for the problem on that domain and is a timeout > problem. Due to some problem in its configuration, I've never have an > answer (the domain exists, but it doesn't answer). what does not answer ,their mailserver , your dns ? > > So I would like to configure some kind of dns lookup timeout in my > relay servers, so if the query is not answered I could reject the > message with a dns error instead of timing out the connection. > > Is this possible? How? you should invest more time in analyse the real problem i.e some routing problems may cause it > > Thanks, > for better advice your recent postfix confs/logs would be nice dont change name of the problem domain 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, Axel von der Ohe, Marc Schiffbauer Aufsichtsratsvorsitzender: Joerg Heidrich
