Ticket opened:
Reproduce: Open the draft email in my forwebmaster folder (the only one that's recent in that folder).
Hit send.
More complete info and reproduction steps:
See
http://www.emaildiscussions.com/showthread.php?p=599572 (this thread)
Reproduction steps:
1) Open this message:
https://www.fastmail.com/mail/Sent/[munged]?u=[munged] .
2) Hit [Reply to all] while viewing the message, which is in my Sent folder.
3) Paste a test email into the To field. I've been using info@[munged].sent.com.
4) Type something at the top of the email - like test #7.
5) Press Save Now.
6) Click on Trash folder.
7) Click back to Drafts folder.
8) Click on the newest message.
9) Press send.
10) See the error attached.