Exchange Transport stopped - e-mal lost, or is it?
I updated an SBS 2011 server last Monday and when it restarted the Exchange Transport service didn't restart. The users have received all subsequent e-mails after I restarted it but not whilst the transport service was inert. Does Exchange store them anywhere and can they be reinserted into the system?
Many thanks, EH
Many thanks, EH
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If the IP in the MX record is alive and the third party spam filter is alive, then I think you should see any emails in a few hours.
.... Thinkpads_User
.... Thinkpads_User
It would depend on whether your spam filter has a store and forward capability. If it does NOT the message would be lost. If it does it depends on how long the spam filter is set to retain messages. Some are only as long as 48 hours before they start dumping messages. Sounds like your anti-spam solution does not store messages it can not deliver to your Exchange server. Maybe this is a buy-up option at your provider. I am a little curios that you have a second MX record for your server - this could potentially allow spammers to circumvent your anti-spam filtering solution.
Does Exchange store them anywhere and can they be reinserted into the system?the mail servers communicating will save them in a queue so they won't be lost. They will manually deliver to the end user or send a NDR (Non Delivery Report) to the sender. They will not be lost.
The primary MX points to an external third party Spam Filter and the secondary to the Server itself.Check the SPAM filter if it's configured to save SPAM in a queue, if so check here however SPAM is entirely different from legit email, just because the exchange transport stops doesn't mean it will automatically go in the SPAM filter...not sure you were implying this but legit email shouldn't be in here just because the exchange transport was off.
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Will run some checks later today - many thanks for all this clarification.
It is some hours later. Did any mail come in? Did any senders report bounced email?
.... Thinkpads_User
.... Thinkpads_User
It's also depend how long your system was down basically sender domain will re-try minimum three attempts to deliver the message for a specific period of time as per the system configuration. So what I mean here is your message will not lost either it will send NDR to sender domain or it will keep the message on queue if you have any front-end server like EDGE server , MS FOPE .
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