2 DCS-930Ls, both had been working fine, and were sending me a daily image at a set time as a canary test.
I just changed the names of ftp folders on the server, and made corresponding change on these cameras; should not have any connection to email.
But now, for whatever reason, email has stopped and when I try to send a test email, I get "E-mail Test Invalid username/password."
Meanwhile, a DCS-932L is still emailing OK. Settings are identical in the 3 cameras, except for the 5-second time window set for the daily image. Tried various username and password combinations with no luck.
Is something about email changed in the latest 930 firmware???
Never mind - we found that a change to port 587 and use of STARTTLS made the 930s work.