Pierre de La Morinerie 6dafbf2412 Allow more mail clients to group emails by thread ...

* send a 'In-Reply-To' header along the 'References' header
* subject of answers to an existing thread begins with 'Re: '

2014-07-03 16:58:42 +02:00

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notify_spec.rb

Allow more mail clients to group emails by thread

2014-07-03 16:58:42 +02:00