We are having this issue while we are tying to reply to a ticket in RT. That email is gibrish and non existent. How can we avoid sending email to that address each time we reply to a ticket?
 [Thu May 17 12:07:59 2018] [info]: rt-4.4.2-29426-1526558879-1917.26275-24-0@ITG-Helpdesk #26275/721852 - Scrip 24 (/opt/rt4/sbin/…/lib/RT/Action/SendEmail.pm:285)
 [Thu May 17 12:07:59 2018] [critical]: rt-4.4.2-29426-1526558879-1917.26275-24-0@ITG-Helpdesk: Could not send mail. (/opt/rt4/sbin/…/lib/RT/Interface/Email.pm:993)