Today I was trying to update my exchange 2013 to cu21.
Before updating Exchange I toke a snapshot in vmWare. The update failed and I reverted the snapshot and now people cannot connect Outlook to the Exchange server or send/receive mails from OWA.
If trying to send an email the email ends up in "Drafts" and when trying to send it again this error pops up "You do not have permission to perform this operation."
In Event Viewer I get alot of errors.
Event ID: 5016
Failed to discover Ews Url for mailbox 'LegacyDn: /o=hilsoe/ou=Exchange Administrative Group (XXXXXX)/cn=Recipients/cn=XXXXX-SystemMailbox{e0d, RecipientType: UserMailbox, RecipientTypeDetails: ArbitrationMailbox, Selected Mailbox: Display Name: Microsoft Exchange, Mailbox Guid: XXXXXXX, Database: XXXXXXX, Location: ServerFqdn: Exchange.domain.name, ServerVersion: 1941996885, DatabaseName: Mailbox Database XXXXX, HomePublicFolderDatabaseGuid: 00000000-0000-0000-0000-000000000000'.
Event ID 10004
Microsoft Exchange could not discover any route to connector CN=name Connector,CN=Connections,CN=Exchange Routing Group (XXXXXXX),CN=Routing Groups,CN=Exchange Administrative Group (XXXXX),CN=Administrative Groups,CN=XXXX,CN=Microsoft Exchange,CN=Services,CN=Configuration,DC=XXXX,DC=XXX
in the routing tables with the timestamp 16-02-2019 22:50:17. This connector will not be used. Total source server count: 1; unknown source server count: 0; unrouted source server count: 0; non-active source server count: 1.