SpamCop anti-spam service suffers an outage after its domain expired
In case you were suffering from all mails being marked as SPAM, this might be the culprit:
Thanked by (1)Asim
In case you were suffering from all mails being marked as SPAM, this might be the culprit:
Comments
It had our RBL checks confused, that's for sure.
RBL servers are expected to return a response in 127.0.0.0/8 range for a positive response.
If the domain is resolving to parking page, the response is not in 127.0.0.0/8.
Why don't the RBL querier reject such invalid responses?
Sloppy design, sloppy code…
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