Using Self Signed SSL for local Email servers
Why do we need certificates?
It is used to identify the server being truly the server you think it is.
Why do we like to use true certificates and not self signed certificates?
Because we want to make sure what we know is really what we think we know.
In short, it's best to use real SSL certificates but what if you just don't mind using your own self signed certificate.
What if it's just you and a few others?
In that case, setup your SmarterMail Enterprise edition (free) using self signed SSL certificates on IIS 7.x from any computer that can run Windows 7 or better.
When you setup your POP3 look to follow simple steps.
- Never allow your email client to select the type of login. ALWAYS select TLS or SSL never plain text when sending login information over any network.
- Self Signed Certificate setup on your mail.yourdomain.com server.
- Incoming server POP3 port 995
- Check the box "This server requires an encrypted connection. (SSL)
- Outgoing server (SMTP) change it from 25 to 465 and set it to SSL only.
When you setup your self signed certificate with email settings (Outlook) like I listed above you will be asked to use the unsigned certificate. It might ask you once or each time you open your email. It's all good, just say yes.