Its Outlook NOT Outlook Express Protocol : IMAP4 Port (TCP/UDP) : 143 (TCP) Description : Internet Message Access Protocol version 4, may be used by "standards-based" clients such as Microsoft Outlook Express or Netscape Communicator to access the e-mail server. IMAP4 runs on top of the Microsoft Internet Information Service (IIS) Admin Service (Inetinfo.exe), and enables client access to the Exchange 2000 information store. -----Oprindelig meddelelse----- Fra: Omppu [mailto:Omppu@xxxxxxxxxxxx] Sendt: 23. januar 2002 14:20 Til: [ExchangeList] Emne: [exchangelist] Re: Communication between Outlook <-> Exchange 2000, Which ports to open i firewall ? http://www.MSExchange.org/ ports 25 smtp 110 pop3 143 imap regards O. ----- Original Message ----- From: "Jesper Vedholm Hansen" <jesper.hansen@xxxxxxx> To: "[ExchangeList]" <exchangelist@xxxxxxxxxxxxx> Sent: Wednesday, January 23, 2002 3:07 PM Subject: [exchangelist] Communication between Outlook <-> Exchange 2000, Which ports to open i firewall ? > http://www.MSExchange.org/ > > > Hi > > If i have Outlook clients on the other side of a firewall, which ports have > to be opened in the firewall ? > > In Exchange 5,5 you have to set static ports for DS and IS (AND RPC from > Outlook -> Exchange), but what about Exchange 2000 ? > > > Here is the situation > Firewall > Clients | > With | Exchange 2000 > Outlook | > > > Any info or links i very welcome ! > > Best regards > Jesper > > ------------------------------------------------------ > You are currently subscribed to this MSExchange.org Discussion List as: omppu@xxxxxxxxxxxx > To unsubscribe send a blank email to $subst('Email.Unsub') ------------------------------------------------------ You are currently subscribed to this MSExchange.org Discussion List as: jesper.hansen@xxxxxxx To unsubscribe send a blank email to $subst('Email.Unsub')