Hello! I ask for forgiveness since now if I'm posting something that already exists and I couldn't find, but I wasn't able to find any helpful resource to fix my problem. I've always used Mail and I like it. I have three addresses, one of the provider, the other two belongs to my personal domain. They've always worked fine. Since two months they suddenly stopped to send e-mails. The error says there's a problem with smtp server. I tried to change smtp settings, I've edited mail settings, tried to set up another account and tried to download another app for mail: always the same problem. My mother, that has a mac too and an e-mail account with our provider, doesn't have any problem. So I tried to copy those settings on my MacBook Pro.. nothing. Then I used 'mail connection doctor' to see what's wrong, and it says: "could not connect to this SMTP server. Check your network connection and that you entered the correct info in the Account prefs. Also verify that the server supports SSL. If it doesn't, deselect the 'Use SSL' checkbox in the advanced tab of account prefs". Of course I did all suggested, but mail has the same problem. I thought it was a problem of the firewall, but it wasn't active! I really don't know what else to do. Any of you has /had the same problem? Any knows the solution? thanx!.