Topic: server and gateway mode vs server mode

[forumuser7]

Hi,
An SME server running in server and gateway mode has to be replaced by a
 router and firewall and another SME box running in server mode.

Which ports on the firewall we need to leave open and forwarded to the SME server?
We need only web server (port 80), and mail server (ports 25 and 110)
but also we may need to upload from time to time newer version of the web site.

Thank you for you help in advance!

[Boris]

80 HTTP
443  HTTPS

21(TCP)  FTP (bad idea)
22 SSH (if needed)
1723 PPTP (if needed)

25 SMTP
110 POP (unsecure)
143 IMAP (unsecure)

995 POP3S (secure) use this instead of POP
993 IMAPS (secure) use this instead of IMAP

[forumuser7]

Than You for the help Boris!