I mean the other way:
My feeded RPZ blocks othercompany.com and *.othercompany.com. Therefore
any qtype (MX, A, AAAA...) are blocked for this domain. Is there a way
with BIND just to whitelist the MX for othercompany.com and the
consequent A-Record (ex. mail.othercompany.com) that we are able to send
mail to othercompany.com?
On 09.11.18 14:39, Lightner, Jeffrey wrote:
That wouldn't help you much. Many mail systems these days check not only your
MX record but also your PTR record to make sure the IP you came from has a
valid (i.e. not generic) reverse lookup. They'll also check things like dkim
or spf TXT records. If they don't like what they find they'll simply reject
email even if you haven't been blacklisted.
In general blacklisting services blacklist specific IPs rather than domains
anyway. A work around would be to change the outbound IP your mail server
uses rather than changing other records. Of course you'd have to make
additional changes for the PTR, A/AAAA and TXT records for the new IP you
select.
Many blacklisting services have a way to delist yourself.
However, if you don't fix the underlying problem that caused you to be
blacklisted in the first place any new IP will quickly be blacklisted as well
and/or delisting yourself a second time is much more difficult.
If you are sending multiple automated emails (e.g. invoices or marketing
materials) to customers you need to be monitoring for returns and removing
rejected email addresses from your databases. These often occur because the
customer no longer has the email address they originally gave you (or they had
a typo in what they gave you).
-----Original Message-----
From: bind-users [mailto:bind-users-boun...@lists.isc.org] On Behalf Of Tom
Sent: Thursday, November 08, 2018 11:49 PM
To: bind-users@lists.isc.org
Subject: Re: Rewrite/Override QTYPE with RPZ
Fore example "example.com" and "*.example.com" are blacklisted. I would like to
return a real ip address for special query types like MX or TXT, but not for A or AAAA.
Tom
On 08.11.18 16:44, Barry Margolin wrote:
In article <mailman.775.1541690246.803.bind-us...@lists.isc.org>,
Tom <tomtux...@gmail.com> wrote:
Hi all
Is there a way to override/rewrite QTYPE (ex. MX) with RPZ? If no, is
this planned in future releases of BIND?
What would be the point? If a query is for MX, and you return A
instead, the client won't be able to do anything with it.
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