A recent worldwide Gmail spam failure sent a lot of messages into the wrong folders. And it’s not exclusive to Gmail. We use Apple mail, a private paid mail service and Gmail, and a lot of filters don’t do well.

Google announced Saturday evening it had resolved a Gmail spam filtering malfunction that began around 5am Pacific, flooding inboxes with promotional emails while flagging legitimate messages as potential spam.

The malfunction prevented emails from being sorted into Promotions, Social, or Updates tabs, sending promotional content directly into primary inboxes. Legitimate messages from known contacts triggered spam warnings. The company restored normal filtering by evening, posting that the issue had been fully resolved globally.