Wietse Venema: > Rob Kelledy: > > Hi, > > I'm getting timeouts to a particular domain. When testing the > > receiving server manually (telnet) I noticed?there is a long delay > > between the connection starting and the 220 Ready message and if > > anything is transmitted during that time the connection is > > terminated. I'm guessing this is some kind of anti-spam messure. > > Is there a way to get postfix to support this? > > Postfix already supports this. > > As required by the Internet SMTP protocol, Postfix does not send > anything until it receives the 220 Ready message. > > However, if the server takes too long to send 220 Ready, then the > Postfix SMTP client will time out as specified with smtp_connect_timeout > in main.cf.
Correction: that is smtp_helo_timeout. smtp_helo_timeout (default: 300s) The SMTP client time limit for sending the HELO or EHLO command, and for receiving the initial server response. > Wietse > >