The host server should be smtp.gmail.com instead of imap.gmail.com , i.e. mail.host=smtp.gmail.com Other info seems OK, port 465, use authentication with working username/password. (Besides, if you want to use IMAP for your email client you have to explicit enable it in Gmail settings - it's disabled by default).
This is a known issue of 7-zip. Fortunately there is a workaround: Work-around: use...
This is a known issue of 7-zip. Fortunately there is a workaround: Work-around: use...