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EXCHANGE SERVER 5.5 / OUTLOOK EXPRESS

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5 replies

by sohai.shamoon

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I am using exch server 5.5. i am using outlook express to download emails when mobile using dialup. I am able to recieve emails properly but when i do a SEND i get this error message

The message could not be sent because one of the recipients wasrejected by the server. The rejected e-mail address was 'nmiqbal@hotmail.com'. Subject 'Re: ', Account: '202.42.237.2', Server: '202.42.237.2', Protocol: SMTP, Server Response: '550 Sorry, This host does not relay mail', Port: 25, Secure(SSL): No, Server Error: 550, Error Number: 0x800CCC79
Your server has unexpectedly terminated the connection. Possible causes for this include server problems, network problems, or a long period of inactivity. Account: '202.42.237.2', Server: '202.42.237.2', Protocol: SMTP, Port: 25, Secure(SSL): No, Error Number: 0x800CCC0F

I do not get this problem if i am logged in the network or while i am using outlook web access . why is it happening and how do i solve it ?

5 replies

by icecat

From the looks of the error message your SMTP server does not allow relaying. Since you are remote and coming from a different IP/domain it thinks you are trying to relay mail through the SMTP server. Most organizations do prohibit relaying to prevent Spammers from using their SMTP server.

It works when you are on your network because at that point you are on a domain that is allowed to send mail through that server.

by datarat

The good news is that there is a solution. Does the isp you're dialing in with have a smtp address? If so, change your connection settings to use that server for your outbound smtp mail.

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