What are the disadvantages of using the POP3 Connecter with SBS Server 2008 with Exchange?
My team has rolled out a SBS server 2008 for a client that has a remote office. Their primary IT that is in Canda wants us to enable the POP3 connector for Exchange, my server guy is against the idea, instaed of slowing him down I said I would look into why not to do this. Looking through the web there is some info but not much besides no likes the idea. Can anyone tell me what are the disadvantages of using the connector with the supporting links?
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A few reasons, which will just re-enforce what the experts above have said:
1. Insecure clients use POP3
2. Increased Bandwidth, as you have the SBS POP3ing from an external Server
3. SBS has a 15min delay for downloading emails (this is between downloads and is the shortest period you can set this to), and can only down 2 email boxes at the same time, so if one user has a large email come through the pipe it will hold up delivery on all the other mailboxes to that environment.
4. POP3 on SBS will bypass IMF (Exchanges inbuilt SPAM filter - as bad as it is - still better than nothing)
5. When creating new users in the AD, you need to also ensure you create them where the email is hosted - double handling user account creation / password management
6. POP3 should be used when you have a dynamic IP Address issued by your ISP. So your WAN Address can change at anytime. For Exchange to accept mail in its traditional method - by having emails delivered to it directly, you need to have a STATIC IP.
7. Based on point 7, you will need to setup a Dynamic DNS record so that EU's can access OWA etc, since your server does not have a STATIC WAN Address.
There are more, but 2 of the primary reasons I wouldnt setup exchange 03 on and SBS Server with POP3 is Point 2 and Point 7/8.
Hope this helps
1. Insecure clients use POP3
2. Increased Bandwidth, as you have the SBS POP3ing from an external Server
3. SBS has a 15min delay for downloading emails (this is between downloads and is the shortest period you can set this to), and can only down 2 email boxes at the same time, so if one user has a large email come through the pipe it will hold up delivery on all the other mailboxes to that environment.
4. POP3 on SBS will bypass IMF (Exchanges inbuilt SPAM filter - as bad as it is - still better than nothing)
5. When creating new users in the AD, you need to also ensure you create them where the email is hosted - double handling user account creation / password management
6. POP3 should be used when you have a dynamic IP Address issued by your ISP. So your WAN Address can change at anytime. For Exchange to accept mail in its traditional method - by having emails delivered to it directly, you need to have a STATIC IP.
7. Based on point 7, you will need to setup a Dynamic DNS record so that EU's can access OWA etc, since your server does not have a STATIC WAN Address.
There are more, but 2 of the primary reasons I wouldnt setup exchange 03 on and SBS Server with POP3 is Point 2 and Point 7/8.
Hope this helps
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This question has been classified as abandoned and is being closed as part of the Cleanup Program. See my comment at the end of the question for more details.
POP3 would increase bandwidth and storage, as one message to 10 users would be stored as 1 message in Exchange, but 10 messages on an external mail client downloading via POP3.
POP3 is the most common way for employees to route mail outside and Exchange domain (to Gmail, yahoo, other mail server) without arousing suspicion. If the admin leaves POP3 turned on, it allows access to smartphones _as_well_as copies to an outside mail service. I don't turn it on because of this alone. If the device wants to attach to the Exchange server...then do it the Exchange way.
If the POP3 connector is for downloading messages from another server...there may not be a way around that. You'd pull messages from another server into your existing accounts. A better way to do that (if HQ is receiving all mail) is to setup their SMTP server to route messages for your addresses to your server. Then, there's not timing delay waiting for the POP3 connector to login and download. It would be just another incoming SMTP message.