Heh, I just sent the same thing. We starte seeing it at 15:30 Eastern US time.
Tara On Mon, Dec 14, 2020 at 6:58 PM Bez Thomas via mailop <mailop@mailop.org> wrote: > Anyone else seeing repeated, but intermittent, 550-5.1.1s from Gmail for > valid addresses? > > Diagnostic-Code: smtp; 550-5.1.1 The email account that you tried to reach > does not exist. Please try > 550-5.1.1 double-checking the recipient's email address for typos or > 550-5.1.1 unnecessary spaces. Learn more at > 550 5.1.1 https://support.google.com/mail/?p=NoSuchUser > -- > Bez Thomas > > > > _______________________________________________ > mailop mailing list > mailop@mailop.org > https://list.mailop.org/listinfo/mailop >
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