This article will step you through how to update the SMTP port used by the Samsung email app in Android.
Don't use Android? Check the help topics for your device or Operating System.

1. Start by opening the Samsung Email app
2. Tap the Menu icon, then tap the Settings icon
   
   
   
   
   
   
   
3. Tap your mailbox from the list provided
   
   
   
4. Scroll downwards, and tap on Server Settings
   
   
   
   
5. Under the Outgoing server heading, check and update the following:
   1. Security Type: TLS or TLS (Accept all certificates)
   2. Port: 587
   3. Require authentication to send emails: On
      
6. Tap Done at the bottom to confirm the changes

Still stuck? Log a support call using the 'Create new ticket' option above!