There are a whole variety of reasons why Exchange might not be sending, although it does sound as though you might not be allowed to send via SMTP(25), which some ISP's block to prevent spamware, hence why they try and force you to use their relay.
Best way to check is see if you can telnet to a known mail service like google and connect via port 25. i.e. root@mail:~# dig mx google.com ; <<>> DiG 9.4.2-P2.1 <<>> mx google.com ;; global options: printcmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 26244 ;; flags: qr rd ra; QUERY: 1, ANSWER: 5, AUTHORITY: 4, ADDITIONAL: 9 ;; QUESTION SECTION: ;google.com. IN MX ;; ANSWER SECTION: google.com. 600 IN MX 40 alt3.aspmx.l.google.com. google.com. 600 IN MX 50 alt4.aspmx.l.google.com. google.com. 600 IN MX 10 aspmx.l.google.com. google.com. 600 IN MX 20 alt1.aspmx.l.google.com. google.com. 600 IN MX 30 alt2.aspmx.l.google.com. ;; AUTHORITY SECTION: google.com. 170004 IN NS ns4.google.com. google.com. 170004 IN NS ns3.google.com. google.com. 170004 IN NS ns2.google.com. google.com. 170004 IN NS ns1.google.com. ;; ADDITIONAL SECTION: aspmx.l.google.com. 293 IN A 173.194.67.27 alt1.aspmx.l.google.com. 293 IN A 173.194.70.27 alt2.aspmx.l.google.com. 293 IN A 173.194.69.27 alt3.aspmx.l.google.com. 293 IN A 173.194.71.27 alt4.aspmx.l.google.com. 293 IN A 74.125.127.27 ns1.google.com. 127020 IN A 216.239.32.10 ns2.google.com. 127020 IN A 216.239.34.10 ns3.google.com. 127020 IN A 216.239.36.10 ns4.google.com. 127021 IN A 216.239.38.10 ;; Query time: 257 msec ;; SERVER: 192.168.60.13#53(192.168.60.13) ;; WHEN: Wed May 30 10:42:29 2012 ;; MSG SIZE rcvd: 352 root@mail:~# telnet alt3.aspmx.l.google.com 25 Trying 173.194.71.26... Connected to alt3.aspmx.l.google.com. Escape character is '^]'. 220 mx.google.com ESMTP b1si16452663lbg.19 ^] telnet> Simon Vass Managing Director E-Tech Uganda Ltd http://www.etech.ug Tel: +256 (0) 312260620 or (0) 312260621 email: [email protected] skype: e-techservicedesk ----- Original Message ----- From: "Dusabe Patrick" <[email protected]> To: "Uganda Linux User Group" <[email protected]> Sent: Wednesday, 30 May, 2012 10:38:25 AM Subject: Re: [LUG] Best linux alternative to MS Exchange Hello Guys, Talking of Zentyal I have installed as a proxy/firewall at a medium sized network. However trouble is that i have exchange running mail. Trouble is exchange can not send mail out on its own and when we use smtp relay (UTL) there is a lag in message delivery. Am puzzled at this cause i love what zentyal does for me at the moment. Any Ideas..... On Wed, May 30, 2012 at 10:18 AM, Reinier Battenberg < [email protected] > wrote: Hi, If smeserver is what you come from, then you should also take a look at Zentyal. Zentyal offers email, samba shares, jabber, voip, firewall & proxy and all from 1 LDAP directory, so your users only have to remember 1 password. Configure Outlook to use IMAP, install a webmail package of choice and you are good to go. rgds, reinier On Wednesday 30 May 2012 10:02:01 G.Y. Mukalazi wrote: Thank you good people, I think i will settle for zimbra, Never used it b4 though so am wondering which linux distro will run it smooth considering am migrating from SME Server . All your help is very much appreciated. On Tue, May 29, 2012 at 4:27 PM, mwebaze keikara nelson < [email protected] > wrote: Zimbra the best.. None of us is as smart as all of us To: Uganda Linux User Group < [email protected] > Sent: Tuesday, May 29, 2012 12:27 PM Subject: Re: [LUG] Best linux alternative to MS Exchange zimbra + funambol will give you the outlook support the end users crave. :) On Tue, May 29, 2012 at 5:18 AM, G.Y. Mukalazi < [email protected] > wrote: Am lookinga at something like a collaboration/groupware kind of hing where we can do Calebdars, IMAP etc, and i have my people to hooked to outlook on the user side so I have googled around some say Zarafa has anyone used it before. Thank You all for your Suggestions am still waiting for more. On Tue, May 29, 2012 at 11:51 AM, Moses Kajwang < [email protected] > wrote: Mukalazi - also check out the Wikipedia entry on "Comparison of mail servers". Could give you a fairly good headstart before you dig deeper. On Tue, May 29, 2012 at 9:55 AM, Simon Vass < [email protected] > wrote: Zimbra gets my vote still. Simon Vass Managing Director E-Tech Uganda Ltd http://www.etech.ug Tel: +256 (0) 312260620 or (0) 312260621 email: [email protected] skype: e-techservicedesk ----- Original Message ----- From: "G.Y. Mukalazi" < [email protected] > To: "Uganda Linux User Group" < [email protected] > Sent: Tuesday, 29 May, 2012 8:34:39 AM Subject: [LUG] Best linux alternative to MS Exchange Hello Good people, Its been a while, now i find my self in this kind of situation I need the best alternative to MS exchange one that will be friendly to outlook, I Really would not like my mailserver to run Ms Exchange. Your Ideas are welcome. Thank you _______________________________________________ The Uganda Linux User Group: http://linux.or.ug Send messages to this mailing list by addressing e-mails to: [email protected] Mailing list archives: http://www.mail-archive.com/[email protected]/ Mailing list settings: http://kym.net/mailman/listinfo/lug To unsubscribe: http://kym.net/mailman/options/lug The Uganda LUG mailing list is generously hosted by INFOCOM: http://www.infocom.co.ug/ The above comments and data are owned by whoever posted them (including attachments if any). The mailing list host is not responsible for them in any way. _______________________________________________ The Uganda Linux User Group: http://linux.or.ug Send messages to this mailing list by addressing e-mails to: [email protected] Mailing list archives: http://www.mail-archive.com/[email protected]/ Mailing list settings: http://kym.net/mailman/listinfo/lug To unsubscribe: http://kym.net/mailman/options/lug The Uganda LUG mailing list is generously hosted by INFOCOM: http://www.infocom.co.ug/ The above comments and data are owned by whoever posted them (including attachments if any). The mailing list host is not responsible for them in any way. _______________________________________________ The Uganda Linux User Group: http://linux.or.ug Send messages to this mailing list by addressing e-mails to: [email protected] Mailing list archives: http://www.mail-archive.com/[email protected]/ Mailing list settings: http://kym.net/mailman/listinfo/lug To unsubscribe: http://kym.net/mailman/options/lug The Uganda LUG mailing list is generously hosted by INFOCOM: http://www.infocom.co.ug/ The above comments and data are owned by whoever posted them (including attachments if any). The mailing list host is not responsible for them in any way. _______________________________________________ The Uganda Linux User Group: http://linux.or.ug Send messages to this mailing list by addressing e-mails to: [email protected] Mailing list archives: http://www.mail-archive.com/[email protected]/ Mailing list settings: http://kym.net/mailman/listinfo/lug To unsubscribe: http://kym.net/mailman/options/lug The Uganda LUG mailing list is generously hosted by INFOCOM: http://www.infocom.co.ug/ The above comments and data are owned by whoever posted them (including attachments if any). The mailing list host is not responsible for them in any way. -- Sanga M. Collins Network Engineering ~~~~~~~~~~~~~~~~~~~~~~~ Google Voice: (954) 324-1365 E- fax: (435) 578 7411 _______________________________________________ The Uganda Linux User Group: http://linux.or.ug Send messages to this mailing list by addressing e-mails to: [email protected] Mailing list archives: http://www.mail-archive.com/[email protected]/ Mailing list settings: http://kym.net/mailman/listinfo/lug To unsubscribe: http://kym.net/mailman/options/lug The Uganda LUG mailing list is generously hosted by INFOCOM: http://www.infocom.co.ug/ The above comments and data are owned by whoever posted them (including attachments if any). The mailing list host is not responsible for them in any way. _______________________________________________ The Uganda Linux User Group: http://linux.or.ug Send messages to this mailing list by addressing e-mails to: [email protected] Mailing list archives: http://www.mail-archive.com/[email protected]/ Mailing list settings: http://kym.net/mailman/listinfo/lug To unsubscribe: http://kym.net/mailman/options/lug The Uganda LUG mailing list is generously hosted by INFOCOM: http://www.infocom.co.ug/ The above comments and data are owned by whoever posted them (including attachments if any). The mailing list host is not responsible for them in any way. -- rgds, Reinier Battenberg Director Mountbatten Ltd. www.mountbatten.net tel: +256 758 801749 twitter: @batje _______________________________________________ The Uganda Linux User Group: http://linux.or.ug Send messages to this mailing list by addressing e-mails to: [email protected] Mailing list archives: http://www.mail-archive.com/[email protected]/ Mailing list settings: http://kym.net/mailman/listinfo/lug To unsubscribe: http://kym.net/mailman/options/lug The Uganda LUG mailing list is generously hosted by INFOCOM: http://www.infocom.co.ug/ The above comments and data are owned by whoever posted them (including attachments if any). The mailing list host is not responsible for them in any way. _______________________________________________ The Uganda Linux User Group: http://linux.or.ug Send messages to this mailing list by addressing e-mails to: [email protected] Mailing list archives: http://www.mail-archive.com/[email protected]/ Mailing list settings: http://kym.net/mailman/listinfo/lug To unsubscribe: http://kym.net/mailman/options/lug The Uganda LUG mailing list is generously hosted by INFOCOM: http://www.infocom.co.ug/ The above comments and data are owned by whoever posted them (including attachments if any). The mailing list host is not responsible for them in any way. _______________________________________________ The Uganda Linux User Group: http://linux.or.ug Send messages to this mailing list by addressing e-mails to: [email protected] Mailing list archives: http://www.mail-archive.com/[email protected]/ Mailing list settings: http://kym.net/mailman/listinfo/lug To unsubscribe: http://kym.net/mailman/options/lug The Uganda LUG mailing list is generously hosted by INFOCOM: http://www.infocom.co.ug/ The above comments and data are owned by whoever posted them (including attachments if any). The mailing list host is not responsible for them in any way.
