Wt

Currently, the To: and Cc: fields are not according to RFC5322. There are multiple of these lines, when more than one recipient is added of each type. The spec states that only a single line should exist, with a comma-separated list of addresses.

While it seems that very few clients or exchange points have any issue with this, this will not work for a service that exactly adheres to the spec. As such our implementation should put the addresses on a single line.