nwhitfield
Member

Registered: Feb 2000
Location: London, UK
Posts: 92 |
Sprint is your internet provider in this case, and you need to find a mail server that will accept mail from Sprint customers and relay it - typically, an ISP does this itself.
The message from your mail server is perfectly correct. To prevent it being used by Evil Spammers From Hell, it has relaying denied - that means that it will accept mail from people within its own domain to send to anywhere, like your PC at home emailing me, or someone at Visor Central. But when a connection arrives from outwith its domain, like an AOL account, or your Visor when it's connected through Sprint, then it will only accept mail for its own domain. Attempting to send messages anywhere else will produce the 550 Relaying denied message.
So, you need to do one of two things:
a) Find a new email server to use, that will allow relaying from Sprint customers. But make sure you have permission to use it.
or
b) Alter the settings on your own mail server. One solution, if you have control over the server, would be to enable POP-before-SMTP relaying, which is pretty simple in modern sendmail installations; on some systems you can switch it on with a simple option in the admin (eg on a Cobalt RaQ).
With POP-before-SMTP you can send mail through your server to anywhere, but only if you've also recently checked mail on that server within a specific time window. For example, on my server I have this set to 15 minutes. As long as I've checked email within 15 minutes, I can send from the same address through my server, as if I'm at home.
(This Check-before-send, incidentally, is why if you use Lookout Distress you sometimes need to press the send and receive button twice, since it does things in the wrong order).
Nigel.
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