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I am not able to subscribe via email – I am receiving a bounce message saying that my subscription was blocked
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All major ISPs are using multiple IP addresses, and it is purely coincidental
which IP address will be assigned to a particular user at a particular time
(unless the user has a dedicated IP address). If the same IP address is
used by many people, it often happens that one of the users
will abuse it
e.g. by sending unsolicited emails thru it. As a result, the IP address is listed
on a temporary block lists available to public.

To protect ourselves and our customers from spam and false subscriptions
we ban those IPs which are recognized as "spammy". Unfortunately, it
sometimes happens that such an IP is randomly assigned to a legitimate
user – that is why we request to contact us, so that we could check the
reason for the block, and unblock it if possible. Please forward the error
message to our support team.

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