Dear,I have a sip Trunk between cucm and cluster of cms .the problem is that the trunk link is not stable , from time to time (no more than 7 minutes) the SIP trunk status is switched to "no service"Could I have a help from you.

Hello Please can someone tell me why using CRES in ESA is better than s/mime or TLS ?Thanks

Hy,pleaase I applied a dlp policy to my outgoing traffic , but I when I send an email that contain a attachment that should trigger dlp , there is no reaction . I see my log file even "dlp no violation" doen't appear . I think that it skips dlp engin...

Hy Please ,why trusted senders can bypass anti-spam but not anti-virus? 

Hy i HAVE THIS PROBLEM Info: DCID 91 TLS failed: verify error: unable to get local issuer certificateThanks