Maybe PM me here until 1&1 resolve their spamming problem.
I have just had this response from 1&1 Techical Support:
Dear Brian
Thank you for contacting us.
Please be informed that the delay in delivering emails to specific addresses is being caused by blockage of the 1&1 IP address due to massive amounts of spam mail from different sources. We apologize for the inconvenience this is causing you. Please be assured that we are working with the specific providers to have this resolved immediately. Thank you for your patience.
If you have any further questions please do not hesitate to contact us.
Good news - our sales@totallyttrs.com email problem has been fixed and all is working normally again
It has been a frustrating 24 hours for us and our customers. I would have thought that with all our technology, it would be impossible to cause such a major incident through spamming
It also made us very aware of how much we depend on the internet/email now...