I have been having the same problem and it is extremely frustrating. I can send emails and I can recieve emails but I cannot recieve the verification code from squarespace. Has anyone found a solution to this?? Where do I email support at?? I tried reaching out to email@example.com and was notified that their support email is no longer active.
Having the same issue right now with not recieving the verification code in my new business gmail account. How do I contact Squarespace to have them remove my email from the block list?? @iridescentmatters