Firewallports
From Kolab Wiki
| SOURCE | DESTINATION | SERVICE PORT | DESCRIPTION | |
|---|---|---|---|---|
| SMTP Gateway | Mail Server Extern | TCP 25 | => | SMTP Outgoing |
| Mail Server | SMTP Gateway | TCP 25 | => | SMTP Mail Server to SMTP Gateway |
| External | SMTP Gateway | TCP 25 | <= | Incoming SMTP |
| SMTP Gateway | External | UDP 6277 | => | Outgoing from Mail Server to DCC Servers |
| External | SMTP Gateway | UDP 6277 | <== | Incoming from DCC Servers to Mail Server (response only) |
| SMTP Gateway | External | TCP 2703 | => | Outgoing from Mail Server to Razor Servers |
| SMTP Gateway | External | ICMP | => | Outgoing Ping from Mail Server to Razor Servers |
| SMTP Gateway | External | TCP 21/80 | => | * Outgoing FTP/HTTP, not needed unless installing from ftp sources |
| External | Webmail server | TCP 443 | <= | Incoming HTTPS for webmail |
