External e-mail not appending to ticket, creating new

External e-mail not appending to ticket, creating new


Hello,
 
Moved to 7507, since the move any e-mail response from someone outside our company isn't appending correctly to the original ticket. Instead a new ticket is generated which I am forced to merge with the old.
 
If I respond to a ticket it appends correctly, this only appears to happen for external addresses.
 
During troubleshooting, I noticed the field in Notification Rules where we used to set the format is no longer visible. We were using the standard Req.ID:##$RequestId## format prior to upgrade.
 
Has anyone seen this behavior? Solutions?

 

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