Gmail uses IMAP, but there are rate limits that seem to have been implemented recently: https://support.google.com/a/answer/1071518?hl=en https://support.google

Gmail uses IMAP, but there are rate limits that seem to have been implemented recently: https://support.google.com/a/answer/1071518?hl=en https://support.google.com/a/answer/1071518?hl=en The rate limits won't stop someone from eventually migrating out, but it might take a while.