On Mon, Dec 27, 2010 at 07:50:18PM -0500, Mark Khan wrote: > Hi Victor: > > Here is a snoop snippet of a failed email. I am hoping you can you tell me > how to configure postfix to ignore AUTH requests?
Why should it ignore AUTH? Why not configure support for AUTH, especially from mobile handsets, whose IP addresses MUST not be listed in mynetworks unless you are the mobile network provider? > S: 220 mail.lancertech > C: EHLO mail.lancertech > S: 250-mail.lancertech > C: AUTH CRAM-MD5\r\n > S: 502 5.5.2 Error: ... > > > The SMTP client sent an unsupported SMTP command to Postfix and hung up > > after Postfix sent: > > > > 502 5.5.2 Error: command not recognized Configure your server to support an AUTH mechanism (usually PLAIN after STARTTLS) that is supported by the client. -- Viktor.