Design2enjoy Posted January 31, 2021 Share Posted January 31, 2021 Dear all, we have unfortunately a problem because of the blokierung of the server IP address, however this is not listed according to SpamCop Blocking List. Here is the error message: 550 5.7.1 Service unavailable; client [18.104.22.168] blocked using bl.spamcop.net (in reply to RCPT TO command How can this problem be solved? LG Design2enjoy Quote Link to comment Share on other sites More sharing options...
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