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[tor-bugs] #13006 [TorBirdy]: EHLO 127.0.0.1 is not a good choice



#13006: EHLO 127.0.0.1 is not a good choice
----------------------+-------------------------
 Reporter:  ww        |          Owner:  ioerror
     Type:  defect    |         Status:  new
 Priority:  major     |      Milestone:
Component:  TorBirdy  |        Version:
 Keywords:            |  Actual Points:
Parent ID:            |         Points:
----------------------+-------------------------
 Torbirdy uses 127.0.0.1 to identify itself when sending mail.
 Unfortunately this value is also commonly used by spammers and so a
 sensible MTA config will reject connections identifying themselves like
 this.

 Using tor to send mail already identifies the sender as using tor,
 obviously, because the exit gateway will be known/identifiable. Therefore
 fingerprinting on this value should not be a concern.

 Propose to change this to a valid hostname, which should be created in the
 DNS, such as,

     birdy.torproject.org. IN A 127.0.0.1

--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/13006>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
The Tor Project: anonymity online
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