By forwarding 25 to the internal mail server, you bypass the proxy for incoming mail, so, and it's my understanding, the SMTP proxy is only for outgoing mail. This would filter your internal mail server and any internal clients trying to retrieve mail from some external mail server.
I just never felt that was needed in any situations for me or my customers... -----Original Message----- From: Ifan Jones [mailto:i...@anheddau.co.uk] Sent: Tuesday, December 16, 2008 5:52 AM To: efw-user@lists.sourceforge.net Subject: Re: [Efw-user] Relaying email from outside source Hi compdoc Yes I do have the SMTP proxy enabled, hence why i tested by converting another port to port 25 internally. IMAP is also up and running on the internal mailserver I'll go through all those settings on the advnaced menu and eliminate! Regards Ifan compdoc wrote: > Im guessing you have the SMTP proxy enabled? I don't use it > myself. On the SMTP page, theres an Advanced tab with many > options like reject non-FQDN sender, and reject non-FQDN > recipient. Do you think those settings are interfering? > > Also in Advanced settings, theres an IMAP server for SMTP > authentication. Is that what you enabled? IMAP works > differently... > > I recently switched a customer from SBS 2000 to SBS 2003, > and external clients had to enable Secure password > authentication (SPA) to get it working for them. This is > controlled by options on the SMTP virtual server in > Exchange. Before that, passwords were sent in clear text. > > I have port 2525 forwarded to port 25 on the server for > external users, only because I have a linux box filtering > spam and viruses for the Exchange server. 2525 is needed to > bypass the spam box, because port 25 is forwarded to it, > which then sends processed mail to port 25 on the exchange > box. > > I other words, the spam box sits in front of the Exchange > box. Otherwise, I'd only need to forward port 25 to the > server, because everything happens on that port. > > > > -----Original Message----- > From: Ifan Jones [mailto:i...@anheddau.co.uk] > Sent: Monday, December 15, 2008 5:53 AM > To: efw-user@lists.sourceforge.net > Subject: [Efw-user] Relaying email from outside source > > Hi All > > My setup INTERNET - EFW/MODEM - GREEN - LANSWITCH > > I would like external users to relay email through - > authentication has > been enabled on th einternal mailserver. I have tried this > two ways > > Method 1. Proxy - SMTP - Advanced settings Enabled this > feature and > inserted my internal mailserver's IP address, whilst trying > to send from > outside, you can see the login ok on the internal > mailserver, but when > it gets to EFW - I get SASL Authentication failed > > Method 2. Reading up on what others have done - I chose a > random port, > let's say 12525, and forwarded it to the internal > mailserver, now on the > external clients - I setup this port for the SMTP server and > switched on > authentication - delivering email to internal addresses > works juts fine, > but on outbound, I get a relay access denied on EFW - any > tips? > > Regards > > Ifan > > ------------------------------------------------------------ > ------------------ > SF.Net email is Sponsored by MIX09, March 18-20, 2009 in Las > Vegas, Nevada. > The future of the web can't happen without you. Join us at > MIX09 to help > pave the way to the Next Web now. Learn more and register at > http://ad.doubleclick.net/clk;208669438;13503038;i?http://20 > 09.visitmix.com/ > _______________________________________________ > Efw-user mailing list > Efw-user@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/efw-user > > > ------------------------------------------------------------ ------------------ > SF.Net email is Sponsored by MIX09, March 18-20, 2009 in Las Vegas, Nevada. > The future of the web can't happen without you. Join us at MIX09 to help > pave the way to the Next Web now. Learn more and register at > http://ad.doubleclick.net/clk;208669438;13503038;i?http://20 09.visitmix.com/ > _______________________________________________ > Efw-user mailing list > Efw-user@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/efw-user > -- Ifan Jones ICT Coordinator / Cyd-lynnydd GCT Ffôn / Telephone - 01248 675 910 Ffacs / Fax - 01248 670 280 E-Bost / E-Mail - i...@anheddau.co.uk Wefán / Website - www.anheddau.co.uk Cyfeiriad post / Postal address - Anheddau Cyf, 6 Llys Britannia, Parc menai, Bangor, Gwynedd, LL57 4BN Mae Anheddau Cyf yn gwmni Cyfyngedig dan Warant rhif 2380151 ac yn Elusen Gofrestredig rhif 701697 Anheddau Cyf. is a Company Limited by Guarantee number 2380151 and a Registered Charity number 701697 Nodyn Diarddel / Disclaimer - http://www.anheddau.co.uk/disclaimer.htm ------------------------------------------------------------ ------------------ SF.Net email is Sponsored by MIX09, March 18-20, 2009 in Las Vegas, Nevada. The future of the web can't happen without you. Join us at MIX09 to help pave the way to the Next Web now. Learn more and register at http://ad.doubleclick.net/clk;208669438;13503038;i?http://20 09.visitmix.com/ _______________________________________________ Efw-user mailing list Efw-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/efw-user ------------------------------------------------------------------------------ SF.Net email is Sponsored by MIX09, March 18-20, 2009 in Las Vegas, Nevada. The future of the web can't happen without you. Join us at MIX09 to help pave the way to the Next Web now. Learn more and register at http://ad.doubleclick.net/clk;208669438;13503038;i?http://2009.visitmix.com/ _______________________________________________ Efw-user mailing list Efw-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/efw-user
