Outlook EAS Mailboxes going to 0 then re-syncing
Problem reported by Joe Dellaragione - July 30 at 10:54 AM
Submitted
Good afternoon ... I have come across two examples lately where users will open outlook and they will basically see emails disappearing from thier inbox. The item count rapidly drops to 0 then the mailbox starts syncing again. The problem is for one of these users it takes 36 hours every time to re-sync 60K emails. If it's any coincidence both of these users are on Outlook 2019 - But I have many other users on Outlook 2019 that do NOT have this issue ...

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Ionel Aurelian Rau Replied
We`ve also seen this, but just for a handful of accounts out of 200+. However, for us, just the Inbox starts re-syncing randomly - the rest of the folders are OK and retain the email. Usually our users have between 2000 - 10000 mails in Inbox. All of these cases are with MS Outlook 2016/2019 syncing over EAS.

For one user, this also happens on his mobile device - also syncing over EAS. He has more than 25000 emails in his Inbox. 
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Barbara Renowden Replied
We are having the same issue just recently started.  I have opened a ticket with SM to see if they can find out the issue. 

Barbara Renowden President / Co-Founder Centric Web, Inc. https://www.centricweb.com

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