[timhaines]

I went looking for where their docs talk about handling attachments, and couldn't find it. Can you point me in the right direction?

[robn_fastmail]

Not sure what's about either. Like many rich-text editors, it can handle embedded images, but the attachment stuff proper is handled in the surrounding application.

[thelibrarian]

My mistake - I was editing an email at the time, and looking at the editor and roving over the UI, I thought "attachments, of course!", without actually checking to see whether or not that was part of the editor or not.