This will show you how to fix a common issue with mail sending in Outlook 2013. Often ports 25, and 80 are blocked by internet service providers yet are frequently suggested by technical support reps. This will show you a way to avoid that issue and secure your connection to the mail server at the same time.
1. Click File. 2. You will see your email account listed in the top box like in the example, if you don’t click the drop down and select it. The click account settings, and then click Account Settings… 3. Now select your account from the list and click Change… 4. Click More Settings… 5. Click the incoming server drop down where it says Use the following type of encrypted connection: and select SSL. The port should change to 993 or 995 depending on if you are using IMAP or POP. 6. Click the outgoing server drop down where it says Use the following type of encrypted connection: and select SSL. You will need to change the Outgoing Server port to 465 from 25 as it will not change on it’s own. Click OK.7. Click Next.
And your done! Unless you have other conditions on your network or system preventing you from connecting you should now be able to send, and your conection to the server should be a bit safer now you have the SSL in place.