Outlook Client not sending email after ISE Authentication & Authorization

[Steven van Jaarsveld]

Hi There Forum

I have a customer who has deployed ISE v2.3 in Low Impact Mode and is using Cisco 4500 Series Switches as his Access Layer. When a 802.1x client is connected to the LAN, the client is successfully authenticated and authorized and the ISE pushes the dACL (Permit IP any any) to the switch port. The customer has reported that after this (and intermittently) Outlook on the client will stay connected to the server but any outgoing emails simply stay in the Outbox and are not sent. When the client connects to the Wireless Network or removes the ISE configuration from the switch port, the mails are sent.

I do not believe that this is an ISE issue and that it could possibly be another issue but has anyone on this forum perhaps run into the same / similar issues before?

Thanks in Advance

Steven

[ognyan.totev]

Hi ,

You told you are in LoW impact mode  ,what is the ACL on the port and after user authenticated are you see on the port only (permit ip any any ) or you see both ACL for the port + permit ip any any

[thomas · Accepted solution]

Since this is clearly a switch configuration issue, you need to provide switch configuration details.

Hardware model, software version, switchport configuration, show authentication session details output, etc.

This sounds like a good case for the TAC to troubleshoot.

[Freemen]

Hi. Are you managed to solve this ? What the solution?