[Evolution] Error Sending Mail

[Ron Whiteside <rwhiteside112 suddenlink net>]

I am attempting to send messages with my very old Prodigy account. The
account is configured as IMAP. This account uses AT&T mail servers that
are hosted by Yahoo. The mail actually sends but I receive

Error appending message: Additional arguments found after last expected
argument

and the message is saved in the local "sent" folder instead of my
Prodigy "sent" folder.

Evolution 3.28.2 (3.28.2-1.fc28) on latest version of Fedora

RW