Hi Vaibhav, Are you able to confirm that those mailbox really exist? Occasionally Yahoo cleans up their mailboxes, so some times bounces may increase. On our end I do not see any increases in bounces in the last 24 hours.
Regards, Vytis On Wed, Nov 13, 2019 at 7:25 AM Vaibhav via mailop <mailop@mailop.org> wrote: > Hi Everyone, > > Recently we observed we are getting false bounce reason within month time. > As per our analysis Yahoo is throwing bounce reason as " *554 delivery > error: dd This user doesn't have a yahoo.com <http://yahoo.com> account* > ([EMAIL]) " > > We identify the same issue across our customers. Few customer we noticed > around ~25% false positive bounces. > > Here is sample for one user, > > *Email bounced :* > > 2019-09-30 16:37:24 > mta5.am0.yahoodns.net (98.136.96.77) > 554 delivery error: dd This user doesn't have a yahoo.com account > ([EMAIL]) [-9] - mta4274.mail.ne1.yahoo.com > > > *Email successfully delivery : * > > 2019-10-31 11:54:11 > mta5.am0.yahoodns.net (98.136.96.76) > > --Vaibhav > > _______________________________________________ > mailop mailing list > mailop@mailop.org > https://chilli.nosignal.org/cgi-bin/mailman/listinfo/mailop > -- Pagarbiai, Vytis Marčiulionis +37064734475
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