> > an email that was sent to my backup MX generated a "Mail loop detected" > > error on the backup MX. > > ... > > so, have I just setup my backup MX wrong ? (I thought this is how it was > > supposted to be setup according to a recent post on this list)
> You should use an "smtprelay" instead of an "smtp" thanks. so that post on the 2/jan/03 by [EMAIL PROTECTED] was wrong. Louis Solomon www.SteelBytes.com ----- Original Message ----- From: "Davide Libenzi" <[EMAIL PROTECTED]> To: "XMail mailing list" <[EMAIL PROTECTED]> Sent: Tuesday, January 28, 2003 12:49 PM Subject: [xmail] Re: "Mail loop detected" on backup MX > > On Tue, 28 Jan 2003, Louis Solomon [SteelBytes] wrote: > > > > > an email that was sent to my backup MX generated a "Mail loop detected" > > error on the backup MX. > > > > here's the setup (using v1.11 on win2000) ... > > > > DNS MX records: > > domain1.com -> 10:alias.domain1.com, 20:alias.domain2.com > > domain1.com xmail settings: > > domain -> domain1.com > > domain alias -> alias.domain1.com > > domain2.com xmail settings: > > custdomain -> domain1.com.tab: "SMTP"<newline>, alias.domain1.com.tab: > > "SMTP"<newline> > > (plus settings pertaining to domain2.com, but they should not be > > relevant, but for those who are interested, they are almost the same as for > > domain1.com). > > > > I tested this by telneting to domain1.com:25 and domain2.com:25 and sending > > a message by hand (which got through both times ok). > > so I thought my backup MX was all ok. > > > > but for a short amount of time on the weekend, domain1.com was offline, and > > an email was sent to [EMAIL PROTECTED] > > now, here is what I think happened .... > > > > remote server does > > MX lookup for domain1.com -> gets 10:alias.domain1.com, > > 20:alias.domain2.com > > attempts to connect to domain1.com:25 -> fails > > attempts to connect to domain2.com:25 -> succeeds > > domain2.com does > > check local domains and domain aliases -> no match > > check custdomain -> finds command "SMTP" for domain1.com > > MX lookup for domain1.com -> gets 10:alias.domain1.com, > > 20:alias.domain2.com > > attempts to connect to domain1.com:25 -> fails > > attempts to connect to domain2.com:25 -> succeeds > > domain2.com does the same sequence of steps repeatedly until loop detected. > > (each time prepending a bit to the header) > > > > so, have I just setup my backup MX wrong ? (I thought this is how it was > > supposted to be setup according to a recent post on this list) > > You should use an "smtprelay" instead of an "smtp" > > > - Davide > > - > To unsubscribe from this list: send the line "unsubscribe xmail" in > the body of a message to [EMAIL PROTECTED] > For general help: send the line "help" in the body of a message to > [EMAIL PROTECTED] > - To unsubscribe from this list: send the line "unsubscribe xmail" in the body of a message to [EMAIL PROTECTED] For general help: send the line "help" in the body of a message to [EMAIL PROTECTED]
