oosterbaan
asked on
Conventions about sending email
Hi all,
I'm having a argument with a company who is claiming that there are new conventions concerning sending email using SMTP.
Our email relayserver can't be reached using a reverse lookup and we don't want that, but some companys only accept mail when the reverse lookup is enabled.
What's your opinion? Where can I find the conventions about sending email over the internet?
Regards,
Bob
I'm having a argument with a company who is claiming that there are new conventions concerning sending email using SMTP.
Our email relayserver can't be reached using a reverse lookup and we don't want that, but some companys only accept mail when the reverse lookup is enabled.
What's your opinion? Where can I find the conventions about sending email over the internet?
Regards,
Bob
Sjef Bosman
As far as I know, this convention is self-imposed by the provider. Nevertheless, it is common practice by now to do a reverse lookup. Why do you want that your server cannot be found?
Some additional info:
http://www.bris.ac.uk/is/selfhelp/faqs/mailfail.html
http://www.bris.ac.uk/is/selfhelp/faqs/mailfail.html
ASKER
Hi Sjef,
I know, maybe it's obsolete to "hide" the name of your mailrelay for security reasons, but I'm not the network guy, who don't want to use the reverse lookup (-:
What I'm looking for is a "hard copy" of some conventions where this "problem" is described, so I can confront the other company, who is rejecting our mail, or our network boys!
Regards,
Bob
I know, maybe it's obsolete to "hide" the name of your mailrelay for security reasons, but I'm not the network guy, who don't want to use the reverse lookup (-:
What I'm looking for is a "hard copy" of some conventions where this "problem" is described, so I can confront the other company, who is rejecting our mail, or our network boys!
Regards,
Bob
I don't know if this is relevent to your problem or need , but a very interesting read :- http://spf.pobox.com/index.html
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ASKER
He Guys,
Splitted up the points and made a mistake in the "Accepted" and the "Assisted" status of the answer!
Can't change that, but thanks guys for the info!
Regards,
Bob
Splitted up the points and made a mistake in the "Accepted" and the "Assisted" status of the answer!
Can't change that, but thanks guys for the info!
Regards,
Bob
JJ,
RFC does not require that the receiving server do this check. I don't recall whether "truthful" HELO is required or just strongly suggested. I think it actually wasn't clear, just saying that the token following HELO is the sending SMTP agent's FQHN.
RFC does not require that the receiving server do this check. I don't recall whether "truthful" HELO is required or just strongly suggested. I think it actually wasn't clear, just saying that the token following HELO is the sending SMTP agent's FQHN.