hello everyone.
in the last few days i have noticed that some of the emails i sent are not actually going through, and they usually do get sent.
this is the msg i get back: "[Return Code 550] sid: KB521n0081BlNXA01 :: http://www.spamcop.net/bl.shtml?182.50.145.5"
in the email there's also an "eml" attachment of the email i sent.
can anyone tell me please how can i fix this issue? i clicked on the link but i don't know what to do from there..
thank you in advance. and have a lovely day.