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Re: Question about failed SMTP

On Jul 21, 2004, at 12:44 AM, webmaster wrote:

> On Jul 20, 2004, at 18:16, Dan Young wrote:
>
>> One of my users is on the road. He is trying to use his office e-mail
>> to
>> send messages (server 10.3 postfix) but is getting a postfix error. I
>> suspect the reason is that he is using a DHCP IP address with no host
>> name.
>> I have our server configured to block SMTP messages without a valid
>> host
>> name.
>>
>> How can I change the settings so that he can use the mail server and
>> keep
>> spammers from annoying everyone with our server?
>
> I've been digging into mail quite a bit lately from solving my own
> problems with some help from dan shoop and helping dennisj from this
> list solve his server and mail.app problem and from what I understand
> about them, if the mail.app is configured properly, he should have no
> problems accessing his personal e-mail or sendingmail from his
> account, it is not restricted by the invalid domain name, the invalid
> domain name restriction only applies to mail received from an invalid
> domain name.
>
> I'd look at both configurations and see where the problem is, change
> the mail logging settings to 'High (All Events)' and have him go
> through the get/send mail process and see what is returned.
>

Remember too that some ISPs block the use of external mail servers.
BellSouth for example just stopped passing port 25 in an effort to stop
spam zombies. As a result one of my users can no longer send mail from
home via our mail server.

Josh

-Josh Wisenbaker, ACSA
Sr. Systems Engineer
ComputerTree Technologies
1-800-467-9820

[demime 0.98b removed an attachment of type application/pkcs7-signature which had a name of smime.p7s]
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 >Question about failed SMTP (From: Dan Young <email@hidden>)



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