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Old 3rd July 2008, 12:17
biobrew biobrew is offline
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I have it set up like that to a tee which is why I'm able to send out emails now, but I have to set the "from" option to my actual email from att.net that I get for having them as my ISP.

If I change the from option to anything else I get a 553 relay denied message.

so this works:

sendmail -f "my_real_email_from_my_isp_which_is_att@att.ne t" someone@somedomain.com

and this does not

sendmail -f "any_ol_made_up_email@any_ol_domain.com" someone@somewhere.com

AT&T's smtp authentication mechanism seems to be making me send a verified "From" with any relayed mail, regardless of having my username and password sent with the email using postfix's sasl_passwd method.

Am I just doing something really retarded? Shouldn't I be able to relay from any name/email address once I authenticate with them using the sasl_passwd method?
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