Comment 1:

It also occurs when you insert it in the text part above
```
This is the text=0A part=
 Newline
```
converting to
```
This is the text
 partNewline
```

Comment 2:

I haven't looked into this yet, but in any case it's too late for Go 1.1.
In our previous debugging we've found that no two MIME and/or quoted-printable
implementations tend to do the same thing.
If we're in violation of the RFC and also other popular implementations, we should fix
this.  But I haven't read the specs or looked at your examples yet.

Labels changed: added packagebug, removed priority-triage.

Status changed to Accepted.

Comment 3:

I've found that ALL other implementations I've seen preserve leading whitespace, except
Go. This is critical, and should be fixed, otherwise the whole package is useless for
live apps.
In my case, all EML envelopes would be parsed incorrectly.

Comment 4:

Fix out for review: https://golang.org/cl/8536045
This would normally be too late given the Go 1.1 freeze (http://golang.org/s/go11freeze)
but I would argue this is a pretty bad regression from Go 1.0.

Labels changed: added go1.1.

Status changed to Started.

Comment 5:

This issue was closed by revision 24555c7.

Status changed to Fixed.