Thanks for getting back to me so swiftly. Unfortunately I don’t have any more information than what our company’s IT services have provided me with.
To quote from their response to the Ticket:
In this specific case, we already can tell you the issue. It is a link in your mail signature (www . adina - wagner . com). Your website is hosted on a server with a blocked IP address: https://check.spamhaus.org/listed/?searchterm=22.214.171.124
This is why the mails get blocked, if you write someone or someone answers you with this link in the mail body it gets rejected. Also, we can’t do anything about it. The IP addess needs to be removed from the blocked list from spamhaus.org in order to unblock the link.
Likewise, the spamhaus.org link does not provide me with much actionable information. They say:
This IP address has been observed to be involved in at least one of the following activities; sending spam, snowshoe spamming,hijacked IP space, or associated with bulletproof hosting.
As a result, this IP address is listed in the Spamhaus Blocklist (SBL)
Sorry for pinging again - Is there anything I can do on my side? I’ve removed the website from my signature (which is sad, and I would like to be able to put it back again), but also anyone who is replying to any of my past emails (that still have the website in the signature of the quoted response) gets their emails flagged and returned as non-deliverable.