Well, take this forum for example...

SO Often I see a string with the subject line beginning with "Re:".  The 
original posting has been known to not show up until two days later.  I 
figure there are simply too many relay hops were things can get delayed 
for a few hours.
--
richard

Jay Dale <[email protected]> wrote on 06/30/2011 11:32:20 AM:

> A couple of the customers said that originally their emails were 
> being caught, but they added them to their whitelists and were 
> working.  But they still reported that it took hours if not days to 
> receive those emails ? so what would cause a delay like that?
> 
> Jay Dale
>  Senior Systems Administrator
> P:281-574-2414
> 
> From: Carl Houseman [mailto:[email protected]] 
> Sent: Thursday, June 30, 2011 11:23 AM
> To: NT System Admin Issues
> Subject: RE: Recipients reporting delays
> 
> What percentage of their mail recipients are we talking about?
> Random customers will use random anti-spam solutions.  So a small 
> percentage of customers not getting these should be considered 
> unavoidable.  These E-mails should advise customers to whitelist 
> your sending address.
> 
> If it's too hard to explain that to the client, recommend a 3rd 
> party mail delivery service and make it someone else's problem to 
explain it.
> 
> Carl
> 
> From: Jay Dale [mailto:[email protected]] 
> Sent: Thursday, June 30, 2011 12:15 PM
> To: NT System Admin Issues
> Subject: Recipients reporting delays
> 
> Hey all,
> 
> I have a client who sends out a lot of email to customers.  They 
> have been reporting in the last few weeks that customers are either 
> not receiving their email or are receiving them hours or days later.
> Currently they are on Exchange 2003/Windows 2003.  They use 
> Katharion/GFI as a spam filter for inbound/outbound emails, and so 
> we went there to look at the inbound/outbound tracking and their 
> emails are showing as Delivered with 250 codes.  It seems, however, 
> that random customers are still having issues receiving these emails
> even though their mail servers are showing as delivered.  I?ve 
> checked and they aren?t listed on any RBL or blacklist.
> 
> What direction do I need to go in from here?  The client is upset 
> that their customers aren?t getting their emails, yet it looks as if
> they are getting them.  Could there be some ISP setting that?s 
> changing their mail to a spam SCL rating?
> 
> Thanks!
> 
> Jay
> 
> 
> Jay Dale
> Senior Systems Administrator
> Unetek, Inc.
> Phone: 281.574.2414
> Email:[email protected]
> 
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