We've got a customer whose emails (from other people but filtered by us) are frequently being rejected by Netstreams harsh SPF-check. I've asked Netstream to add our servers to their whitelist, but nothing has happened.
/Per Jessen, Herrliberg
Per Jessen wrote:
We've got a customer whose emails (from other people but filtered by us) are frequently being rejected by Netstreams harsh SPF-check. I've asked Netstream to add our servers to their whitelist, but nothing has happened.
I was just wondering -
1) how many of you guys use SPF to reject emails when the SPF-check returns '-all' ? 2) have a list of exceptions for the above?
/Per Jessen, Herrliberg
Per Jessen per.jessen@enidan.ch 2008-02-05:
We've got a customer whose emails (from other people but filtered by us) are frequently being rejected by Netstreams harsh SPF-check. I've asked Netstream to add our servers to their whitelist, but nothing has happened.
As a more generic alternative, you could implement SRS in order to handle forwarding in an ``SPF compliant'' way. This will fix the problem for all receivers which use SPF for scoring or rejection.
I am aware that this suggestion might well provoke yet another SPF/SRS flamewar :-)
-Dan
Daniel Roethlisberger wrote:
Per Jessen per.jessen@enidan.ch 2008-02-05:
We've got a customer whose emails (from other people but filtered by us) are frequently being rejected by Netstreams harsh SPF-check. I've asked Netstream to add our servers to their whitelist, but nothing has happened.
As a more generic alternative, you could implement SRS in order to handle forwarding in an ``SPF compliant'' way. This will fix the problem for all receivers which use SPF for scoring or rejection.
We have been thinking about SRS for a while - I'm wondering if SRS is "safe" for mailservers that don't implement SPF/SRS? (I'll do my research anyway, but just in case you know right away).
/Per Jessen, Herrliberg
Per Jessen wrote:
We have been thinking about SRS for a while - I'm wondering if SRS is "safe" for mailservers that don't implement SPF/SRS? (I'll do my research anyway, but just in case you know right away).
Looking at the status of libsrs2, I'm not very impressed. Also, we're a postfix site, and postfix seems to be very poorly supported wrt SRS.
/Per Jessen, Herrliberg
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Daniel Roethlisberger -
Per Jessen