July 17, 2025 7:30am – A mail delivery issue has been caused by an update to the email software. Senders will see this error when sending: “An error occurred while sending mail. The mail server responded: qq unable to contact AV daemon (#4.3.0). Please check the message and try again.” Emails being sent to our users will be temporarily deferred until the issue is resolved. The problem is related to the antivirus scanning done on the email server during delivery, but the root caused is yet to be determined. We are actively working on the issue and updates will be posted here.
Update 10:00am – The issue relates to software dependencies put into place by the update. The newer versions were being put into place in preparation for an operating system upgrade in the near future, but unfortunately, there were some conflicts resulting in the antivirus software not working. The mail server hands off email to the antivirus software for scanning as it comes through and since that software is not “answering”, it results in the error you are getting. We are working with the upstream software vendor to address the issue currently.
Update 11:00am – The issue has been resolved and deliveries are commencing. Email in your outbox should be sent out normally and incoming emails will start to filter in shortly. Incoming emails have been deferred so they are held at the sending mail server. Once those servers start to see things are back, the emails will start coming in.
We do apologize for the inconvenience. Everything should be normal now, but if you do have any issues, please give us a call at 256-547-6817.