Report error 475 on backup email
Just so, if it's a valid error, I am notified on my other email and can take action ASAP. My mail app advised me I could not log on to my yahoo mail because my password has changed. Since I did not change my password and it's not my main account, I thought my app got compromised and I ignored it for a couple of days. When I finally logged in (and changed my password as advised) through a browser, only then did I see mailer-daemon's tons of error code 475 report. I never sent those mails nor do I know the recipients - from what I checked they were gmail addresses. I had no idea since I wasn't receiving mails when Yahoo mail removed my app's access.
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Justine Manuel
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