I've lost my login email for my trello account

[Micha]

Hi, 

I know my username and password, but I'm not sure what email I used. I tried several ones, but no email is matching. How can find out, what email I used for my registration?

Thanks in advance. 
Micha

[Augusto Lisboa]

Hi, Micha! I'd recommend you open an issue on Atlassian Support. I guess that the support team will have all the tools to find your e-mail.