67Buzz
asked on
SBS 2003 Exhange SMTP Fails to Authenticate
I do volunteer work at a local No-Kill animal shelter and I have just upgraded our server to SBS 2003 and I am using Exchange Server with the POP3 Connector to deliver mail to the Exchange mail boxes. That part is working fine. This issue I am having is that when we try to send email outside of the network they come back with the following error
There was a SMTP communication problem with the recipient's email server. Please contact your system administrator.
<shelter_domain.org #5.5.0 smtp;550 must be authenticated>
I found out that our ISP and Web Hosting requires authentication. I have tried going to Small Business SMTP Connector and put in the SMTP DLS and also tried 1and1. Both of these would not send with or without going to the Advanced tab and changing it to Basic Authentication and entering in a valid email for each of these. After reading some other post I also tried some settings in the default SMTP virtual Server. In the end I changed the virtual server setting back to where I started. Not sure if there is a return to defaults for this or not but I think I kept good track of what I changed. I also notice that when I ran the Internet and email Wizard it seemed to put things back.
As a workaround I tried using my personal cable ISP provider as the SMTP for delivering mail. I turned on the basic authentication and used me@cableprovider.net as the account to authenticate with and it works now. (as a side note on my SBS 2003 server at home I did not need to authenticate but it could be because I am running their service at home)
I would like to get this running properly not sure If I am going to have issues with my personal ISP if I do not fix it.
Questions
1. Who should be responsible for send my email the ISP or the Web Hosting company?
2. Just in case I did not put something back is there a way to put the SMTP settings back to default?
3. Could the Web Hosting company be authenticating by matching the sending email address(user@mydomain.com)
4. Can someone give me detailed instructions on how to resolve this?
Previous Email Config
Before changing server and we brought email into the desktops I used these settings and it worked fine
POP3 Incoming: pop.1and1.com
SMTP outgoing mail.dls.net
ISP
DLS Internet Services
http://www.dls.net
POP3 Incoming: mail.dls.net
SMTP outgoing mail.dls.net
Primary DNS: 216.145.243.22
Secondary DNS: 209.242.0.2
Below is taken from DLS FAQs
2.1 Why am I receiving an error, "Relaying access denied" when trying to send mail?
DLS dialup customers should use mail.dls.net as the SMTP (outgoing) and POP3 (incoming) mail servers. For DLS web hosting customers, please see question 3.1.
If you are dialing up outside of the Chicagoland area, you must use a mail client that supports SMTP authentication (such as Outlook Express or Netscape Messenger) and configure it to use the same settings as for POP3. For example, if your email address was joe@dls.net, you would use joe as the username for POP3 and for SMTP authentication. If you do not enable SMTP authentication, you will not be able to send outgoing mail and will receive an error, "Relay access denied".
WEB HOSTING
1&1
http://1and1.com
POP3 Incoming: pop.1and1.com
SMTP outgoing smtp.1and1.com
Primary DNS: 216.145.243.22
Secondary DNS: 209.242.0.2
There was a SMTP communication problem with the recipient's email server. Please contact your system administrator.
<shelter_domain.org #5.5.0 smtp;550 must be authenticated>
I found out that our ISP and Web Hosting requires authentication. I have tried going to Small Business SMTP Connector and put in the SMTP DLS and also tried 1and1. Both of these would not send with or without going to the Advanced tab and changing it to Basic Authentication and entering in a valid email for each of these. After reading some other post I also tried some settings in the default SMTP virtual Server. In the end I changed the virtual server setting back to where I started. Not sure if there is a return to defaults for this or not but I think I kept good track of what I changed. I also notice that when I ran the Internet and email Wizard it seemed to put things back.
As a workaround I tried using my personal cable ISP provider as the SMTP for delivering mail. I turned on the basic authentication and used me@cableprovider.net as the account to authenticate with and it works now. (as a side note on my SBS 2003 server at home I did not need to authenticate but it could be because I am running their service at home)
I would like to get this running properly not sure If I am going to have issues with my personal ISP if I do not fix it.
Questions
1. Who should be responsible for send my email the ISP or the Web Hosting company?
2. Just in case I did not put something back is there a way to put the SMTP settings back to default?
3. Could the Web Hosting company be authenticating by matching the sending email address(user@mydomain.com)
4. Can someone give me detailed instructions on how to resolve this?
Previous Email Config
Before changing server and we brought email into the desktops I used these settings and it worked fine
POP3 Incoming: pop.1and1.com
SMTP outgoing mail.dls.net
ISP
DLS Internet Services
http://www.dls.net
POP3 Incoming: mail.dls.net
SMTP outgoing mail.dls.net
Primary DNS: 216.145.243.22
Secondary DNS: 209.242.0.2
Below is taken from DLS FAQs
2.1 Why am I receiving an error, "Relaying access denied" when trying to send mail?
DLS dialup customers should use mail.dls.net as the SMTP (outgoing) and POP3 (incoming) mail servers. For DLS web hosting customers, please see question 3.1.
If you are dialing up outside of the Chicagoland area, you must use a mail client that supports SMTP authentication (such as Outlook Express or Netscape Messenger) and configure it to use the same settings as for POP3. For example, if your email address was joe@dls.net, you would use joe as the username for POP3 and for SMTP authentication. If you do not enable SMTP authentication, you will not be able to send outgoing mail and will receive an error, "Relay access denied".
WEB HOSTING
1&1
http://1and1.com
POP3 Incoming: pop.1and1.com
SMTP outgoing smtp.1and1.com
Primary DNS: 216.145.243.22
Secondary DNS: 209.242.0.2
ASKER CERTIFIED SOLUTION
membership
This solution is only available to members.
To access this solution, you must be a member of Experts Exchange.
ASKER
Does anyone else have some input on what I may do here the ISP is telling me I need to authenticate with the same email as I am receiving the emial on.
ASKER
2/3 of question answerd
ASKER