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Continue to ChatMail.app and the constant IMAP refresh ... why, oh why? https://pauljacobson.me/2009/09/21/2009921mailapp-and-the-constant-imap-refresh-why-oh-why-html/
Mail.app and the constant IMAP refresh ... why, oh why? https://pauljacobson.me/2009/09/21/2009921mailapp-and-the-constant-imap-refresh-why-oh-why-html/