In order to configure my connection to the mail server with SSL authentication, after a lot of trials I found out that the Avast email provider was interfering in the connection, and it did not work.
In the end I managed to check and send my emails by deactivating 2 options of the email provider:
check in (POP protocol) and check out (SMTP protocol).
I am wondering if the email provider is of any utility now.
It will only interfere with your connection if you try to force avast to scan SSL secure encrypted email as it can’t do so. That is the whole point of SSL email to keep out prying eyes, including AVs.
However, your post is a little short on information. What ports are used for your secure POP3 and SMTP ?
What is your ISP ?
Ports 110 and 25 are for standard non-secure POP3 and SMTP communication, if these porst are mis-used for secure SSL the that will make the SSL communication fail.
Both POP3 (port 110) and SMTP (port 25) servers are of the Venice university now, where I have got the account. Before, the SMTP was the one of my ADSL provider, Alice.
As sometimes there were some malfunctions (loss of messages) IT technicians from the university advised me to move to the local SMTP server, where SSL protocol is active.
As far as I understand there is no point in trying to check encrypted in and out, so I could completely deactivate the Avast email protection. Is this correct?
That is the problem using what is effectively the standard pop3 and smtp ports for non-standard use. Commonly these ports are used for SSL/TLS emails POP3 995, SMTP 465 (or 587 thunderbird email program).
There are some other ISP that also have this lash up of using standard ports for SSL traffic.
There is another similar option that can be useful if you have multiple accounts configured in Outlook Express or Widows Live Mail and want to prevent Avast from scaning the outgoing emails from Sympatico only. Under the "Redirect" tab, specify "smtphm.sympatico.ca:25" as the Ignored address.
The above quote shows a work around for the Sympatico ISP, you could possibly use that to avoid scanning traffic for the university email server, smtp.servername.com (where the servername is the university email servers.
Ideally they shouldn’t use port 110 and 25 for non-standard use.
The reason I suggest going to this length, is it allows you to keep the Internet Mail scanner active, for any occasion you use a different email server and un-encrypted email. It also serves another purpose, if you set the Internet Mail scanner to High, it can detect multiple identical emails in a period of time, this could be your first indication of an undetected/hidden spambot, which could come with its own SMTP program.