On Tue, January 6, 2015 15:08, Roman Gelfand wrote: > I do run dns server on both client machines. > > The dig response of the client machine from the client machine that > connects immediately has one more entry. It is bringing back an A > record of the client machine. > > As it turns out that was the issue. I am not sure why. If you could > explain it, I would appreciate it. >
I do not know why, but I can speculate that postfix checks for an A record if certain checks are enabled, or perhaps it does so regardless, and then has to go look for an MX record if it does not find it. Two lookups plus a possible timeout value. -- *** E-Mail is NOT a SECURE channel *** James B. Byrne mailto:byrn...@harte-lyne.ca Harte & Lyne Limited http://www.harte-lyne.ca 9 Brockley Drive vox: +1 905 561 1241 Hamilton, Ontario fax: +1 905 561 0757 Canada L8E 3C3
