Hi,
Last month I made an account with you and ever since I have gotten several explicitly sexual spam emails a day. It was so bad that I had to switch to a new email account. I am certain that it was your server that leaked the address, as I used a fake name to register.
I am assuming that this was not intentional, but you should definitely check your system for any breaches.

Thank you for your message and the note! And of course we are very sorry that you are having problems with your email account.
We checked our system again and found no sign of a compromise. No suspicious root logins, no suspicious processes/traffic and no rootkits found either.
We have not received any similar reports from other users either. And of course we ourselves work with numerous test email addresses in our system and have no signs of increased spam.
Couldn't it be that your email address got into the wrong hands in another way?

All the best from Berlin,
Your Tipp10 Team