Jeff Lasman wrote: > We'd like to whitelist real hotmail servers. We've found we can't > identify them from their spf records; they don't keep those up-to-date > <frown>. > > Currently hotmail appears to be using only servers matching this: > > bay0-omcX-sYY.bay0.hotmail.com > > where "X" is a single digit and YY is either one or two digits. > > Is there a way to easily check for this in an lsearch (or perhaps some > other kind of search) through a whitelist file? > > Or some other easy way to do it? > > Or some other method completely different, that doesn't rely on their > published spf records? >
Hello,
I do use this:
deny
message = Faked $sender_address_domain.
log_message = Fake hotmail
senders = [EMAIL PROTECTED] : [EMAIL PROTECTED]
condition = ${if match {$sender_host_name}{\Nhotmail.com$\N}{no}{yes}}
It is not 100% safe as many people could put a reverse DNS pointing to
hotmail, but it is better than nothing.
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smime.p7s
Description: S/MIME Cryptographic Signature
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