On Thu, Mar 01, 2012 at 03:00:54PM +1100, Daniel Jitnah wrote:
I am having errors sending emails to a particular domain. Errors are below (actual ip and address changed):
They appear multiple times, and to more than one address on same domain.
Can't find much useful info on a 421 timeout error
Any explanation and fix ?
is the remote MTA sitting behind a Cisco PIX firewall? the PIX has/had a crappy SMTP proxy implementation which tended to break smtp like this. postfix has config options you can use to workaround PIX bugs: smtp_pix_workaround_delay_time = 10s smtp_pix_workaround_maps = smtp_pix_workaround_threshold_time = 500s smtp_pix_workarounds = disable_esmtp,delay_dotcrlf it's been a few years since i had to care about such things :) so you could try googling for 'postfix pix workaround' if your destination smtp server is being buggered up by a PIX. craig -- craig sanders <cas@taz.net.au> BOFH excuse #441: Hash table has woodworm