Hey,
(I'm pretty new to SF so I'm sorry if what I'm posting is posted as the wrong topic)

Question:
I'm trying to log in to a Sandbox environment in my org but I can't get past the verification step. SF tries to send a verification code to my mail according to this format:
firstname.lastname@orgname.se.invalid
The part that says ".invalid" is not part of my real mail meaning the code gets sent somewhere that isn't my e-mail inbox. 
How do I get past this?
Thanks in advance for help!:)