I have the same problem of Pedro. I used the same configuration used for evolution:
Provider: POP 3
host: the same used in evolution pop.fastwebnet.it
user: the username of my mail account
password: the same
port: 110
use SSL: no
The Pedro's workaround works for me too
ahhhhh!!! Does the problem appear when you have updated to 0.5.14? I fixed a bug with the SSL because it has always enabled and when you update to 0.5.14 the ssl configuration doesn't exists.
If you edit the account and save again (only the first time), it must work fine forever. Can you confirm it??
I think that is working on the development branch (trunk) If you want, you can download it from github and try it. If it works for you, please, make me know!
I've finded a workaround:
- open CloudSN window
- click in an account
- click in edit button
- click in Ok