Hello Wehave a satellite terminal - FleetOne and will use THINDERBIRD to send and recieve emails. ALL ports are blocked - except all the POP and SMPT ports. We cannot send and recieve emails I need to know if there are additonal PORTS that also need to be allowed through the firewall. All PORETS are blocked except EMAIL ports, to stop INTERNET traffic, which will incur costs using the satellite link. Outgoing EMAIL Ports SMTP - 25 SSL - 465 TLS - 587 IMAP - 143 Secure IMAP - 993 Incoming EMAIL Ports POP3 - 110 SSL - 995 Reagdsr Rob