Studio end-of-game email bug?

[Idsky]

Testing our nearly-finished game 'Factum' on BGA Studio.

I am getting this error when reaching gameEnd state:
Unexpected error: Failed to send an email to <my_email> : The following From address failed: contact@boardgamearen... : MAIL FROM command failed,,,SMTP server error: MAIL FROM command failedSMTP server error: MAIL FROM command failed

Note: It had my actual email and a BGA one in the error but I don't want to post email addresses.

[Idsky]

The problem has gone away today!