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Opening firewall for Mac OS Mail

I'm having trouble to open ports on our wireless firewall for Mac Os mail user.
When I open all services, it works, but doesn't when I open only  80, 143, 587. No SSL is required. I checked the Mail preference in Mac Os Mail, those are the ports shown at exchange setup required. What else do I have to open?
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crcsupport
Asked:
crcsupport
2 Solutions
 
Eoin OSullivanConsultantCommented:
OSX Mail is the same as any other email client .. if you open the Activity Window (located in the Window Menu) you can see what Apple Mail is trying to do.   It might highlight what mail and protocol it is using.
Did you open port 25 for SMTP or 110 for POP mail?

If you open a Terminal window and type
lsof -i -P

Open in new window

This will show you all the ports which are in use... in there you'll see Mail and you can see what ports it has open.
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Sanga CollinsSystems AdminCommented:
I am pretty sure port 25 is needed to send mail through exchange server. What specifically is not working? Sending or recieving mail?
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nappy_dThere are a 1000 ways to skin the technology cat.Commented:
What mail server areyou connecting to?
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crcsupportAuthor Commented:
sorry guys, it was some other problem which I can't explain.
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