I must have done this but at some distant time in the past as I have
no recollection of doing so.
The situation is that now one of the professional organisations our
firm belongs to sends its newsletter via constantcontact.com. I can
of course simply remove constantcontact.com from the block list.
However, given that it is one of only two such entries I must have had
considerable provocation to add it to begin with.
My researches into the reputation of constantcontact.com does not
inspire confidence and tends to support the original decision.
However, i may be compelled to allow their servers to connect to
deliver this particular organisation's monthly newsletter.
At the moment this is what happens:
This is what we see in our logs respecting constantcontact.com
smtpd: NOQUEUE: reject: RCPT from
ccm168.constantcontact.com[220.127.116.11]: 554 5.7.1
This indicates that we obtain a recipient address from the connection
before it is rejected. Is their a method available to me to permit
one recipient address for this sender and block all the rest? Is
there a better way to block all traffic from constantcontact.com
except for a specific recipent?
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> On Jan 2, 2018, at 12:19 PM, James B. Byrne <[hidden email]> wrote:
> The constantcontact.com domain was added to our sender_access file:
> constantcontact.com REJECT
> .constantcontact.com REJECT
They are a largely legitimate bulk mailer that offers their services
to business customers. They aren't always able to weed out customers
with dirty contact lists preëmptively. So some of their traffic is
spam, but IIRC they drop and/or reeducate spamming customers. YMMV.
I'd remove the rule and watch for unwanted traffic. Report any abuse
you find to constantcontact, and see whether their response is adequate.