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By default 48hrs until permanent failure. <br />
<br />
You can change the settings on the SMTP virtual server delivery properties. <br />
<br />
Shaun
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By default 48hrs until permanent failure.

You can change the settings on the SMTP virtual server delivery properties.

Shaun

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Thanks Shaun. I have set the expiration to 10 days &nbsp;- we should be up and OK by then I hope? Do I need to do anything to make sure the server gets this change or is clicking &quot;OK&quot; enough?
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Thanks Shaun. I have set the expiration to 10 days  - we should be up and OK by then I hope? Do I need to do anything to make sure the server gets this change or is clicking "OK" enough?

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No problem, <br />
<br />
I would restart the Simple Mail Transfer Protocol service for good measure, <br />
<br />
Regards<br />
<br />
Shaun
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No problem,

I would restart the Simple Mail Transfer Protocol service for good measure,

Regards

Shaun

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We have 2 sites in our organisation with a Exchange server at each. One server is currently down and has been for a number of days. On the other sever, I can see the SMTP queue building up, but I think messages have been lost from the point where the failed server crashed. Is there a way to increasse the retention time or &nbsp;get these messages back?
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We have 2 sites in our organisation with a Exchange server at each. One server is currently down and has been for a number of days. On the other sever, I can see the SMTP queue building up, but I think messages have been lost from the point where the failed server crashed. Is there a way to increasse the retention time or  get these messages back?

How long do messages stay in SMTP queue?

Interactions between email servers and clients are governed by email protocols. The three most common email protocols are POP, IMAP and MAPI. Most email software operates under one of these (and many products support more than one).  The correct protocol must be selected, and correctly configured, if you want your email account to work.

Email Protocols

Exchange is the server side of a collaborative application product that is part of the Microsoft Server infrastructure. Exchange's major features include email, calendaring, contacts and tasks, support for mobile and web-based access to information, and support for data storage.