Am 03.01.2011 20:00, schrieb Victor Duchovni:
On Mon, Jan 03, 2011 at 07:44:51PM +0100, Ralf Hildebrandt wrote:
* Wietse Venema<wie...@porcupine.org>:
421-4.4.2 host.example.com Error: timeout exceeded
421 4.4.2 For assistance, contact the helpdesk at 800-555-0101
I wonder how many calls you would actually get for that.
Almost none, because users cannot read [bounce messages].
hmmm.
They understand that the message did not arrive:
http://funstoo.blogspot.com/2010/12/what-we-say-to-dogs-what-they-hear.html
:)
This said, in a B2B context, a less experienced postmaster of a
remote domain may in some cases benefit from a link to a more detailed
explanation of an SMTP reject message. A fixed suffix for SMTP error
responses is probably the right cost/benefit trade-off.
That's when you get calls from the remote site admin where he wants you
to remove him from your postgrey greylist because his users cannot send
mails to site x of customer x where postgrey runs. Real reason for
failure: site x runs an ancient version of postgrey and the calling
admin's mail server does not handle 451 correctly. Sometimes it really
takes time to make them understand that postgrey IS NOT a dns based
(black|grey)list or whatever.
