I want to acknowledge up front that I am a total newb when it comes to setting up an email configuration on Linux. If any of the assumptions I've made in this post are incorrect, please let me know.
I use Thunderbird to check an email account at my university. The university offers a secure SMTP server (SSL) over port 465, through which I can send mail. I need not be on the university's network to access this server. It's easy to configure a program like Thunderbird so that it sends mail through this smtp server.
I am assuming that it is possible to configure an MTA like Sendmail or Postfix to act the same way. (I'm not worried about downloading email--I've been able to configure fetchmail to do that.)
I am using Ubuntu (Mint Linux) and have been trying to solve this problem with Postfix, the Ubuntu's recommended MTA.
After reading through Postfix's online documentation, I eventually came to a document about
Postfix TLS Support. It mentions that SSL is deprecated, and you need to use TLS.
Does that mean that I can't use Postfix to do what I want it to do?
Any advice on how to set an MTA up to do what I want it to do?
I've searched for tutorials that introduce total newbs to Sendmail or Postfix, but have been pretty unsatisfied with what I've found. Maybe I'm just not picking the right search terms for Google, I'm not sure. Are there any documents out there that are written for the Postfix or Sendmail newbie in mind?