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leighc1

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message bonce from hotmail with the message:Unable to connect to the destination SMTP

I am trying to send an email to a hotmail account, but they get bounced back with" Unable to connect to the destination SMTP", I have tried different hotmail account and i always get the same result. Other emails can be sent with no problems.I Have ensured the email address is correct. I have tested my ip address on ordb and this has been returned not to be an open relay.
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sugarfreeless

do you use your own email relay?  Have you been blacklisted?

check here to see.  
http://www.mxtoolbox.com/blacklists.aspx
what email server are you using, if any?
what client are you using?

What ISP are you using?

CW
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ASKER

Thanks for the reply, basically we host the email server for other people emails, installed on windows 2003 server, we setup there email account for other business’s
Apologise not for giving all the details, but I’m still learning about windows 2003 server.
All the emails go through our server fine apart from some hotmail address’s that gets bounced, not all are returned. I can send emails to my hotmail account no problem, but users hotmail address are constantly getting sent back, after doing some searching I found some information about setting up a round robin on the server to do a reserve lookup, is this correct or is it that the dns records do not match the ip address.
I have checked the server ip address against the blacklist records and that it has come back ok.
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ASKER

anybody got any idea what me causing this
Avatar of leighc1

ASKER

and i can't spell, what i meant to type is, has anybody got any idea what maybe causing this
Do you have the reverse lookup setup correctly for each of these domains?

Test them with netdiag.exe

another thing, have you tested these addresses and found them to be authentic?  meaning there is an address out there?  Try one from hotmail to hotmail....

I agree w/cvvood

check that they resolve correctly and test the addresses from different places.  Just to help single out the issue.
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ASKER

sorry for not responding to the comments, but I have found solution, the way round it is if the user is not using broadband that is provided by us,then the user has to use the broadband provider smtp server address, normally when the email account is setup the user has to use smtp server as  mail.domain.com if there using another internet service provider such as BT then it has to smtp.btinternet.com
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PAQ_Man
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