[ale] mail headers question
Geoffrey
esoteric at 3times25.net
Sun Aug 29 08:04:32 EDT 2004
Joe Steele wrote:
> On Friday, August 27, 2004, Geoffrey wrote:
>
>>Geoffrey wrote:
>>
>>>My expectation, which I'm about to test is, speedfactory will not permit
>>>me to send email through their server with an email address that
>>>reflects a domain that does not match the smtp server. I'll let you
>>>know what happens. :)
>>
>>Well, it worked, so my assumption was not correct. Don't know that I
>>understand it, other than the fact speedfactory knows the email is being
>>sent from my static, therefore will permit it.
>
>
> I think ISP's generally don't care what their customers use as a
> sender address (within reason). Many people want to be able to use
> different sender addresses depending on the circumstances (whether
> they are responding to a business contact vs. a personal contact, for
> example).
>
> There was just one more thing about this bounced message issue that I
> might point out. You previously provided Earthlink's error message:
>
>
>>foobar at mindspring.com:
>> 550 Dynamic IPs/open relays blocked. Contact
>><openrelay at abuse.earthlink.net>.
>> command : mail
>> response: 550 Dynamic IPs/open relays blocked. Contact
>><openrelay at abuse.earthlink.net>.
>
>
> My interpretation of this is that Earthlink rejected the message in
> response to the SMTP "mail from:" command. This means that Earthlink
> rejected the message without even waiting to see who the recipient
> was or what the message content was. In other words, Earthlink never
> saw the mail header containing your private IP address.
>
> For Earthlink to say that the message is rejected because "Dynamic
> IPs/open relays blocked" can only mean that they didn't want to do
> business with the 1and1 SMTP server. It had nothing to do with the
> unseen message content.
That's interesting, I think I'll try sending email from my speedfactory
based domain through 1and1 and see if I get the same results.
--
Until later, Geoffrey Registered Linux User #108567
AT&T Certified UNIX System Programmer - 1995
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