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Newguy 123

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Outlook 2010 Security Alert when opening Outlook

Hello Experts. We are currently in the process of migrating user mailboxes from our on-premises ex2010 to our parent companies ex2013. when we moved one management users mailbox, we noticed other management users get the following security alert (see attached pic) when opening their outlook 2010 in the morning. there are about 6-8 alerts that kept popping up with different server names. happens every time you close and open outlook. Why is it effecting the users that did not get migrated? Could it be because the migrated user was maybe sharing their mailbox or calender with these users?. Has someone else encountered this problem, and how was it resolved. Please let me know.
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Tom Cieslik
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You need to install security certificate on new server and bind it to https port 443 in IIS to your default website for internal and external domain
You can also try to install certificate manually on workstations
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Brad Nelson
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Newguy 123

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Thank you for responding, is this something that needs to be done on the parent companies side? or my side. Please let me know.
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