Jordan Wright

[Reference](https://gist.github.com/jordan-wright/6307ed4971d8f178f043) Tentatively, I think this is caused by either improper _handling_ of header folding (as defined by [RFC 2822](https://tools.ietf.org/html/rfc2822#section-2.2.3)), or improper folding on the client library's part. I'll generate some...

Hey @kalbasit, this is great. Thanks! I think I hit the nail on the head with header folding being the cause. It seems like this is related to the code...

> if we get an error from textproto.ReadMIMEHeader() we could try to parse it ourselves. We could try to do this, but unfortunately the only solution I see is to...

I wonder if this one is related to the `Content-Type` and `Content-Transfer-Encoding` being on the same line. I'll do some investigation and get back to you on this one.

Moving this to `v2.3`

Moving this to `v2.3`

Hey @wmark - thanks for the suggestion! Just curious - what benefit would this give us as opposed to the existing implementation? How it's currently implemented should avoid duplicates, and...

I see what you're saying, but I based my function on this [RFC draft](https://www.ietf.org/proceedings/42/I-D/draft-ietf-usefor-message-id-01.txt) which appears to closely mirror how other clients such as [Swift mailer](http://swiftmailer.org/docs/messages.html) generate message ids. As...

Interesting - thanks for the links! It'll take me a bit to look over these, but I'll give them a look over and will decide how best to proceed. Thanks...

Going to make this a higher priority now that https://github.com/gophish/gophish/issues/77 depends on this being possible.