Front change history: Delays in sending and receiving Gmail messages [gmail]

Front reported a major incident delaying Gmail message sending and receiving, initially in us-west-2 and later across multiple regions. It started at 2024-09-13 15:38 UTC and resolved at 2024-09-13 19:25 UTC, lasting 3 h 47 min. Front suspected Gmail rate limiting, drained the message backlog, and reported all channels back to normal.