I have tried finding the answer, but it didn't exist.
Best Answer
Nothing appears to happen until you reach close to 105% utilisation (e.g., ), at which point, messages get temporarily rejected as follows, after the RCPT TO command is issued:
452-4.2.2 The email account that you tried to reach is over quota. Please direct
452-4.2.2 the recipient to
452 4.2.2 https://support.google.com/mail/?p=OverQuotaTemp XXXXXXXXXXXXXXXXXXX - gsmtp
However, the current quota and usage is exposed via IMAP and used by some IMAP clients (eg Thunderbird) when you ask it for current quota information. I would have expected this information to be exposed via the Outlook Connector also. Does Outlook have a function somewhere to show the current usage info?
You could also implement something yourself using IMAP OAUTH if its really important to you that it sends email. It would be a trivial thing for someone to write a Marketplace app to do the same thing.
Best Answer
Nothing appears to happen until you reach close to 105% utilisation (e.g.,
), at which point, messages get temporarily rejected as follows, after the
RCPT TOcommand is issued:Here's the link as a hyperlink: https://support.google.com/mail/?p=OverQuotaTemp