Angmar

Does anyone know if the mail forwarding supports "+" operators in the email address? A quick Google search seems to suggest that Mailgun supports +, but when I just tried testing this on an email address from a domain that was migrated from Google Domains, and it doesn't seem to work. The email doesn't arrive, nor does it bounce back to the sender. Anyone else having this issue?

What was your workaround? I contacted Squarespace support but they haven't fixed it.

Did you ever solve this problem? I am having the same issue after my domain was transferred today. I do not have a Google Workspace subscription, but the Squarespace domain console says that I do. My email still seems to be forwarded, but no forwarding rules are listed and I cannot add any forwarding rules in the Squarespace domain console. When I look at the MX records, they list Google SMTP servers, but as I said I don't have Google Workspace. Before the transfer Google domains handled the forwarding. I had other domains that were transferred, but after the transfer their MX records pointed to Mailgun rather than Google, and those other domains have rules that I see in the Squarespace domain console. Should I delete the MX records that point to Google, and will Squarespace then create a new set of Mailgun MX entries and let me create email forwarding rules in the Squarespace domain console?