IANA Sysadmin but it looks like you're butting up against the reverse DNS issue.
http://www.simpledns.com/kb.aspx?kbid=1052 On Jul 21, 2011, at 5:45 PM, Wade Preston Shearer wrote: > I have a site where visitors are making charitable donations. A receipt is > emailed to them. A high percentage of these email receipts are bouncing. > > > Here is an example of diagnostic information being returned by one of the > rejecting email servers: > > mail.orcon.net.nz #<mail.orcon.net.nz #5.0.0 smtp; 550-Verification failed > for <[email protected]> 550-Unrouteable address 550 Sender verify > failed> #SMTP# > > > Original message headers: > > http://pastie.org/2251238 > > > Why would it work about eighty percent of the time but not the other twenty? > Could the problem be that the mail is coming from an internal server name > "dmzweb11.local" instead of a public domain name? > > _______________________________________________ > > UPHPU mailing list > [email protected] > http://uphpu.org/mailman/listinfo/uphpu > IRC: #uphpu on irc.freenode.net _______________________________________________ UPHPU mailing list [email protected] http://uphpu.org/mailman/listinfo/uphpu IRC: #uphpu on irc.freenode.net
