Link to home
Start Free TrialLog in
Avatar of Syswatch6000
Syswatch6000Flag for Denmark

asked on

Very slow Exchange 2007

I have en SBS 2008 server with Exchange 2007. When people send us email it takes between 3-5 minutes before it apears in both Outlook 2010 (cachemode) and OWA.
Earlier the emails popped up immediately...

There is no anti spam on the server itselfs, but we have mailfiltering hosted.

The problem is there on both external and internal mails, so I dont think the problem is the mailfilter.

Exchange 2007 is latest version with all hotfixes installed.

I really dont know where to look... anyone that can help ?
What can I do to restore the performance on the exchange server ???
Avatar of Kash
Flag of United Kingdom of Great Britain and Northern Ireland image

do you have any kind of firewall on your network which is filtering traffic ?
Avatar of Syswatch6000


We only have our WAN firewall CISCO ASA 5510, but it does not filtering traffic.
Hi, You mentioned that you have this issue in (cache mode) in outlook 2010 how about online mode ? is there a change in performance or still the same?
It's the same in OWA....
The ASA device does filter SMTP traffic. It is notorious for causing odd email delivery issues.
It is so common that Microsoft have a KB article on the process:

Avatar of Syswatch6000
Flag of Denmark image

Link to home
This solution is only available to members.
To access this solution, you must be a member of Experts Exchange.
Start Free Trial
I found the solution to my problem myself.