Re: [Assp-user] Mailhop Backup MX?

[Jeroen v. A. <kr...@at...>]

Hill, Brett wrote:
> Exactly, so why does an email server have to retry for 3 days if it
> isn't "Guaranteed"?  If it gets rejected, let the enduser resend the
> email.  The people at my company have no problems doing that.  I'm sorry
> if they do at yours. :-)

The server doesn't HAVE to retry for any set amount of time, it's just 
that it is generally understood 5 days is acceptable. Be that as it may, 
  absolutely nothing prevents your users from resending it anyways. It's 
not like a delivery failure disallows them the privilege of using email.

PLUS they actually do get quite a number temporary delivery failures 
before those 5 days are over, starting within at least the first few 
hours. So they must be really dense if they didn't register the fact 
there is a delivery problem.

I wonder though how a user is going to resend it if there is a 
(temporary) failure and the recipient can't receive said email. The next 
step would be the phone, wouldn't it? And while you're trying to reach 
the recipient by alternative means the email server happily will be 
retrying for 5 days, which is very kind and helpful, and causes a great 
deal of failover/redundancy (it's built into smtp, yay!, if you try to 
comply to rfc guidelines) and time for the receiving end to bring back 
up their server(s). It's like a win win situation. ;-)

Greetings,
Jeroen