Hello Davide & list,
I have one piece of mail which cannot be delivered:
The target domain has 3 MX entries:
20 buch.biblio.etc.tu-bs.de.
58 rzcomm5.rz.tu-bs.de.
10 mailscan.biblio.etc.tu-bs.de.
MX 10 seems to be filtered by a firewall or a spam policy going
wild (responds to ping, connect to port 25 times out).
MX 20 seems to be shielded by policy (only allows local connects?)
reports with a bit atypical message 520 (but "5" IMHO is quite
correct: This MX permanently won't accept [my] mail)
MX 58 would accept the mail, but XMAIL (1.20, WinNT) doesn't even try
to connect to this MX. Here is the complete slog of the delivery
attempt:
[PeekTime] 1087918860 : Tue, 22 Jun 2004 17:41:00 +0200
<<
ErrCode = -232
ErrString = Error connecting to remote address
SMAIL SMTP-Send MX = "mailscan.biblio.etc.tu-bs.de." SMTP =
"mx.gymel.com" From = "[EMAIL PROTECTED]" To =
"[EMAIL PROTECTED]" Failed !
SMTP-Error = "417 Temporary delivery error"
SMTP-Server = "mailscan.biblio.etc.tu-bs.de."
|>
<<
ErrCode = -41
ErrString = Bad server response
ErrInfo = 520 Connection not authorized from this address.
SMAIL SMTP-Send MX = "buch.biblio.etc.tu-bs.de." SMTP = "mx.gymel.com"
~From = "[EMAIL PROTECTED]" To = "[EMAIL PROTECTED]" Failed!
SMTP-Error = "520 Connection not authorized from this address."
SMTP-Server = "buch.biblio.etc.tu-bs.de."
|>
It seems as if XMAIL completely stops processing after the ("local") 5xx
error of MX 20.
My questions are:
- Is "520" really a "Bad server response"?
- Should "Bad server response" really be a reason to cancel all delivery
~ attempts?
- What IS XMAIL's policy WRT 5xx errors? Even "550 Mailbox does not
~ exist" could simply mean that this one MX is mis configured and not
~ that all delivery attempts with other MXens would also fail.
- Shouldn't XMAIL at least make one complete round over all MX hosts
~ before giving up?
viele Gruesse
Thomas Berger
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