317296 - Recipient headers can be invalid if there are invalid chars that aren't quoted

Status: NEW

(Thunderbird :: Message Compose Window, defect)

Description

[Rob Siklos [:robzilla]]

Say you compose an e-mail in Thunderbird, and the recipient (To field) is
   Mailing List: Test <[e-mail]>

This will result in the following "To:" header:
   To: Mailing List: Test <[e-mail]>

This header is rejected by some mail sending applications (e.g. qmail's sendmail), and the message gets bounced.

Perhaps this is a problem with qmail, and not with Thunderbird (I don't know what the RFC says, and I don't know which RFC Thunderbird honours), but regardless, it looks bad on Thunderbird when you get bounced messages because of the above.  

The "real name" part of any To, Cc or Bcc address should be automatically put in double quotes if it contains a dangerous character (such as : or ,)

For example, the above should be transformed to:
   To: "Mailing List: Test" <[e-mail]>