Cisco Support Community
cancel
Showing results for 
Search instead for 
Did you mean: 
Announcements

Welcome to Cisco Support Community. We would love to have your feedback.

For an introduction to the new site, click here. And see here for current known issues.

New Member

Microsoft Outlook though ASA firewall

Hi All. I have some users from another company who are visiting my company. The use outlook to access their mail. I think it is via RPC over https (ssl). When there are on my network they are unable to send messages but when the connect to an ISP directly they are able to send. I have a cisco 2821 as my internet router and an ASA5505 (8.0.5...i downgraded it from 8.2.3) as my firewall. I have not blocked anything from going out.

Of note is that when other users use window live configured for gmail....which uses tls they are unable to send emails with atachements. Regular emails go though no problem. Hotmail can send atachments without a problem (there is no encrytion there).

I have narrowed the issue down to how the firewall treats esmtp or tls traffic passing though it. I have already diabled inspect esmtp on the firewall. Do you know what else i could try?

Regards

MGR

2 REPLIES

Microsoft Outlook though ASA firewall

Hi,

   Did you see any deny log when testing?

Toshi

New Member

Microsoft Outlook though ASA firewall

I did not see any denys when testing. I am going to set up syslog and run some further test to see if i see anything.

MGR

549
Views
0
Helpful
2
Replies
CreatePlease to create content