Can you still send messages if you block port 25 in Firewall?

[Milt2016]

I want to be sure my email is not being used to send spam, however; I still want the email that I send manually myself to still get to the receiver end. What would be the best way to implement this. This is on the outgoing end btw.

 

[iParanormalx]

Most firewalls block port 25... smtp is a huge spam port. Thats why a lot of mail clients use 993/995 in and 465/557 out.. your phone, thunderbird, outlook ect will use these ports.