alex-is
asked on
550 5.7.1 Unable to relay for email@domain.com
Hey everyone,
I'm reaching out here... this has been driving up the wall the last few weeks, as well my users. I have exchange 2003 running on 03 server, in a single domain, multiple domain controller network. Everything works great for people who access email from inside regardless if they use Outlook or OWA. Everything works fine for people using OWA from the outside. Problem comes in when people from the outside use POP. They can only send email to within the company. I have enabled relay for all authenticated users. I have tried everything, on the remote POP machines i checked off, my outgoing server requires authentication, and on the server side.I'm not sure what additional information i should provide. There are tons of things regarding this on the web but i cant find any resolution. I found that you can add each domain who users can send email to, but realistically we have thousands of customers. Any help would be GREATLY appreciated.
Best regards,
Alex
I'm reaching out here... this has been driving up the wall the last few weeks, as well my users. I have exchange 2003 running on 03 server, in a single domain, multiple domain controller network. Everything works great for people who access email from inside regardless if they use Outlook or OWA. Everything works fine for people using OWA from the outside. Problem comes in when people from the outside use POP. They can only send email to within the company. I have enabled relay for all authenticated users. I have tried everything, on the remote POP machines i checked off, my outgoing server requires authentication, and on the server side.I'm not sure what additional information i should provide. There are tons of things regarding this on the web but i cant find any resolution. I found that you can add each domain who users can send email to, but realistically we have thousands of customers. Any help would be GREATLY appreciated.
Best regards,
Alex
Tell ALL those users that use POP3 / SMTP to authentificate with the SMTP server before they send mail.
This will solve the problem.
ASKER
I have tried everything except SP1.
i will let you know how it goes,
thanks
i will let you know how it goes,
thanks
Are you SURE that they are authentificating against the smtp/pop3 server ???? as this is the message you will get.
On the SMTP server require authentification and say allow all authentificated users to relay trough the server.
On the SMTP server require authentification and say allow all authentificated users to relay trough the server.
ASKER
just to make sure..
AD>EXCHANGE>Administrative
is this the option?
thanks
AD>EXCHANGE>Administrative
is this the option?
thanks
Has to be ON.
ASKER
opps... i appologise... checked off, i mean.. it's checked. it's ACTIVE
Indeed, but that's not the only thing you need to check, make sure to go POP3 clients use the "TYhis server requirwes authentication" on the POP3 client, are you sure this is checked??
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>> I have enabled relay for all authenticated users. I have tried everything, on the remote POP machines i checked off, my outgoing server requires authentication, and on the server side.I'm not sure what additional information i should provide<<
This should be working. There is no need to give all the users acces to relay. We have the same setup and it works. First off all try installing SP1 for Exchange 2003.. Second of all, just as a test, make sure to give all machines access to relay, this way you can make sure that it really is a permissions problem..
Are these users mailbox enabled users?? Make sure that the setting "use same credentials as the incoming server" on the "my outgoing server requires authentication".