Brandon Long via mailop wrote:
If your mail server doesn't expect to get forwarded mail, I can see
using SPF like that.
If you do expect to get forwarded mail, then it seems likely to cause
more false positives than it's worth.
I don't see that... Renaud just quoted
https://www.iplocation.net/email-delivery-problems "Many mail servers
refuse to accept emails from an IP address without SPF record" not that
the SPF record should be restrictive when it comes to forwarded mail....
remembering the SPF is just to identify the places where a domains email
may originate and whether the set policy is to be enforced or just used
for information. SPF doesn't stop forwarded email unless configured to
do so... and not forgetting we're talking about where you're sending to,
not about you receiving in this context. Ie I may choose not to accept
email from domains without SPF, if google.com doesn't have an SPF record
it would just stop you sending to me, if you put in a +all or ?all
record into google.com's DNS I would accept your email...
Regards,
--
Michelle Sullivan
http://www.mhix.org/
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