Email to Support@Hauptwerk.com rejected...

Howdy Francois & Martin. I just attempted to send you a message with a diagnostic file attachment, sending from my normal yahoo email account that I've used for all correspondence, and taking your email address from my local cache. Got an email rejection:
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Sorry, we were unable to deliver your message to the following address.
<support@hauptwerk.com>:
550: The sending IP (74.6.128.111) is listed on https://spamrl.com as a source of viruses.
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An NSLOOKUP of that IP returns: sonic312-49.consmr.mail.bf2.yahoo.com

I'll try once again.

FYI - the second send attempt went through, I received back your system's ack message.