RT 3.4.3
We have emails coming in to our RT instance, and the submitter is set as
user@company.com. We need the submitter to be set as ‘user’, so when they
log in to the SelfService interface as ‘user’, they see the tickets that they
submitted.
I have tried to graft the information I saw at
[rt-users] RT3.4.1 Wrong ticket count in query results ,
but have so far come up short. I don’t have a file
local/lib/RT/Interface/Email_Local.pm , and when I try to put it into
lib/RT/Interface/Email/Auth/MailFrom.pm , I am not certain that I understand
what needs to be done. I can be certain that the stripping is not occurring
as we want. 
If anyone else has this working, I would be glad to see how you are doing it.
Thanks,
Rob