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Bounce codes › Gmail

550 5.4.5: Daily user sending limit exceeded

Your own Google account sent as much as Google allows in a day. Google refuses more until the limit resets.

Wait and try again You hit your own sending limit

Your Gmail account reached its daily sending limit.

  • Sent by: Gmail / Google Workspace
  • Permanent (hard bounce) by its code, so your mail system will not retry by itself. The cause passes: a new message later can get through.

How Gmail words it (source):

Daily user sending limit exceeded.

Why it happens

  • A mailing or mail merge from a Gmail or Google Workspace mailbox.
  • An app or website that sends through your Gmail account (SMTP) and sent more than usual.
  • Someone else is using your account.

What to do

  1. Wait up to 24 hours. Google says the limit is counted over a rolling 24 hours.
  2. Check the Sent folder for mail you did not send; if there is any, change your password.
  3. For larger mailings use an email service made for bulk sending. A Gmail mailbox is not meant for it.

Don't confuse it with

Microsoft's codes for the same situation are 550 5.1.90 and 550 5.2.2 Submission quota exceeded.

Questions

Are the addresses I wrote to bad?

No. Google stopped your account before trying them.

Can I still receive email?

Yes. Only sending is paused.

Got a different bounce?

Paste the whole message into the bounce code lookup. It reads the code and the words and tells you whose move it is.

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