My favorite term (when discussing why email isn't always the best choice) is it's a best effort mechanism - there are no guarantees, that's what telephones and FedEx are for.
-----Original Message----- From: John Aldrich [mailto:[email protected]] Sent: Thursday, June 30, 2011 1:06 PM To: NT System Admin Issues Subject: RE: Recipients reporting delays Well said, Carl, well said! People these days seem to have forgotten (or never got the memo) that email is NOT guaranteed to be delivered at all, or even in a timely manner. Sure it's normally at the recipient's mail server within minutes (if not seconds) of when you hit "send" but there's no guarantee of it! Thanks, John Aldrich IT Manager, Blueridge Carpet 706-276-2001, Ext. 2233 From: Carl Houseman [mailto:[email protected]] Sent: Thursday, June 30, 2011 1:00 PM To: NT System Admin Issues Subject: RE: Recipients reporting delays Once again, random mail systems will have random delivery delays, for unpredictable reasons. Could be client software problems, client virus problems, server problems, network infrastructure problems, the list goes on. Unless you can identify a pattern in the recipients who have issues (all on the same mail service, all using a particular mail client, all using the same add-on anti-spam, etc.), troubleshooting these issues will be a one-at-a-time problem requiring an abundance of cooperation from each recipient. Your client should be made to understand that e-mail is not a 100% successful delivery mechanism, nor a timely one. Carl From: Jay Dale [mailto:[email protected]] Sent: Thursday, June 30, 2011 12:32 PM To: NT System Admin Issues Subject: RE: Recipients reporting delays 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. 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