1

I've develop webmail client for any mail server. I want to implement message conversion for it — for example same emails fwd/reply/reply2all should be shown together like gmail does...

My question is: what's the key to find those emails which are either reply/fwd or related to the original mail....

Jonathan Leffler
  • 730,956
  • 141
  • 904
  • 1,278
Avadhesh
  • 4,519
  • 5
  • 33
  • 44

2 Answers2

4

The In-Reply-To header of the child should have the value of the Message-Id header of the parent(s).

Ignacio Vazquez-Abrams
  • 776,304
  • 153
  • 1,341
  • 1,358
3

Google just seems to chain messages based on the subject line (so does Apple Mail by the way.)

Powertieke
  • 2,368
  • 1
  • 14
  • 21