Our host IP address ended up black listed as a spam generator yesterday (no idea why). Since we are on a shared hosting service, someone else on the server could have been responsible. After I requested it be delisted, it was relisted 5 hours later. I opened a support ticket – have not received a response, but the IP address is delisted again. While most of the churches we host do not use any of the email features, it impacted my ability to send email yesterday. Our mailing list was sent out from a different server, so the mailing was not impacted. The fun never stops! Praise God.