<https://forum.spamcop.net/topic/7366-resolved%C2%A0e-mail-not-being-picked-up/#comment-50027>
<http://schema.org/text>
"I'm certain that the issue you describe is not the same as the one this thread was started to discuss.  Namely, that for a period, some Email arriving at spamcop.net mailboxes would be rejected at the SMTP stage because the source IP matched an identified source of spam. \n\nYour description is that ALL your Email is going to your held mail folder.  That is a very different issue and, since nobody else seems to be reporting this, is likely to be something unique to your configuration. \n\nFor this reason it would be helpful to know how you collect the mail from mailbox A and deliver it to your SpamCop mailbox.  Do you forward from A or have you got SpamCop set up to 'POP' from A. \n\nAlso, have you been through the process of setting up your mailhost configuration?  If you have then perhaps your routings have changed.  Since the mailhosts do not not dynamically reconfigure themselves this can cause a problem.  You need to reconfigure the mailhost settings.  Or you may even need some manual intervention to fix the mailhosts.  I had a similar issue a year or so back and the SpamCOp admins were very helpful. \n\nAndrew \n"
<https://forum.spamcop.net/topic/7366-resolved%C2%A0e-mail-not-being-picked-up/>