I have been trying to configure Outlook 2003 to work with Gmail's IMAP/SMTP servers. Gmail requires SSL encryption to connect to both servers. Outlook connects to both servers without difficulty when the account SSL encryption is turned on.
I know that Avast needs to have secure connections turned off in order to scan mail, but when I do that the Gmail servers will not allow me to connect.
The example of how to set up Outlook in the knowledge base looks slightly different than Outlook 2003. I assume it is a later or earlier version. The default unsecured IMAP port in Outlook 2003 is 143. I also have tried 110, the number in your example, and 993, the port required by Gmail for secure connections. The default unsecured SMTP port is the same as your example, 25. I also tried the Gmail SSL port number, 465. None of them work except 993 and 465, and then only when SSL is also turned on for both ports in Outlook.
I have the port numbers set to 993 and 465 in Avast, with SSL turned on for both.
Any suggestions?