We're (among other things) an email marketing provider, and getting
close to taking the plunge with our clients and having them create SPF
records.
He're a practical question:
Meng has been working to get Microsoft on board and came up with the
hybrid standard labelled "Sender ID", which if you follow it to the
letter says that you (as a mail sender) can publish either Caller ID or
SPF, and Caller ID takes precedence if you have both, because the
receiving MTA should perform the DNS lookup for Caller ID first.
From the receiving MTA perspective, a lot of open source types have
said they will only support the SPF half, due to concerns about IP
restrictions around caller ID. This is fine if all the sending domains
publish records for either SPF or both mechanisms in their DNS.
From what I can see out there in the world, the majority of the big
guns have SPF only, e.g. AOL - execept for Microsoft, who have only
Caller ID records in their DNS.
*What I want to know is, from an inbound perspective, does Hotmail (and
other MS ISP properties) currently implement /Caller ID/ or do they
implement /Sender ID/, i.e. will Hotmail look at an SPF record if there
is no Caller ID one?*
If not, then as far as I see it the SPF / Sender ID effort is still in
full schism, with Microsoft using only their proposed proprietary
standard, and the rest of the world using SPF.
This really becomes a pain in the butt if I have to have customers
deploy both SPF and Caller ID, it's hard enough to get them to get the
basic A and CNAME records right for the web sites we host for them.
From a purely objective technical standpoint, SPF is simpler, cleaner,
and technically superior, and much easier to implement, and it would be
really helpful if Microsoft would just back down at this point - they
have enough monopolies, they don't need control of MARID technology as well.
Recent advice from the Direct Marketing Association (DMA) was to
implement "all three" - Caller ID, SPF and Domain Keys, which makes me
suspect it is not current with the technology - is Yahoo! actually doing
anything about Domain Keys any more, I thought they had decided to back
SPF? They don't currently have SPF or Caller ID published.
-------
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close to taking the plunge with our clients and having them create SPF
records.
He're a practical question:
Meng has been working to get Microsoft on board and came up with the
hybrid standard labelled "Sender ID", which if you follow it to the
letter says that you (as a mail sender) can publish either Caller ID or
SPF, and Caller ID takes precedence if you have both, because the
receiving MTA should perform the DNS lookup for Caller ID first.
From the receiving MTA perspective, a lot of open source types have
said they will only support the SPF half, due to concerns about IP
restrictions around caller ID. This is fine if all the sending domains
publish records for either SPF or both mechanisms in their DNS.
From what I can see out there in the world, the majority of the big
guns have SPF only, e.g. AOL - execept for Microsoft, who have only
Caller ID records in their DNS.
*What I want to know is, from an inbound perspective, does Hotmail (and
other MS ISP properties) currently implement /Caller ID/ or do they
implement /Sender ID/, i.e. will Hotmail look at an SPF record if there
is no Caller ID one?*
If not, then as far as I see it the SPF / Sender ID effort is still in
full schism, with Microsoft using only their proposed proprietary
standard, and the rest of the world using SPF.
This really becomes a pain in the butt if I have to have customers
deploy both SPF and Caller ID, it's hard enough to get them to get the
basic A and CNAME records right for the web sites we host for them.
From a purely objective technical standpoint, SPF is simpler, cleaner,
and technically superior, and much easier to implement, and it would be
really helpful if Microsoft would just back down at this point - they
have enough monopolies, they don't need control of MARID technology as well.
Recent advice from the Direct Marketing Association (DMA) was to
implement "all three" - Caller ID, SPF and Domain Keys, which makes me
suspect it is not current with the technology - is Yahoo! actually doing
anything about Domain Keys any more, I thought they had decided to back
SPF? They don't currently have SPF or Caller ID published.
-------
To unsubscribe, change your address, or temporarily deactivate your subscription,
please go to http://v2.listbox.com/member/?listname=spf-deployment@v2.listbox.com