Comment 67 for bug 1299604

I use Xubuntu 16.04 with evolution 3.18.5.2
This is the 2nd time, that it failed to send emails. It had previously worked seamlessly( over 3 months). Then I had to change my Microsoft (live) password. Evolution, asked for a new password when I started it up successfully. After that it could successfully receive all my emails but could not send any.
I eventually followed the advice found on this site to run seahorse, I closed Evo, and deleted all the relevant passwords associated with Evo. I restarted Evo, it asked for my server password twice, then the receiving and sending could happen again. It seems that it fails to recognise that either
1: The sending password is the same as receiving password ( there may be exceptions, but i would think it would be a fair default) for any email server.
2: that if get action required new password, so does send action
This password change coincided , coincidentally, with a system update. I don't know if that is part of the cause of this bug. Of course now that I have reported it, I will probably always remember the solution if it happens again.
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Interesting, seahorse did not have the title seahorse in Xubuntu start menu. Rather when I entered "seahorse" in the search of startup menu, it resolved only to "Passwords and keys". It makes sense in a functional way, but threw me off track until that time.