After intra-forest migration sending email to users results in NDR #550 5.2.0 STOREDRV.Deliver: T (4264214)

Users were migrated within a forest and "Reconnect Exchange mailbox" option has been used. After migration users cannot open Outlook, they get an error "Cannot open your default email folders" or "The Exchange server is not accessible". Sending email to such users results in Non-Delivery Report similar to the following:

John.Smith@company.com

#550 5.2.0 STOREDRV.Deliver: The Microsoft Exchange Information Store service reported an error. The following information should help identify the cause of this error: "MapiExceptionAmbiguousAlias:16.18969:87000000, 17.27161:000000007C000000000000000F00000000000000, 255.23226:71040000, 255.27962:FE000000, 255.17082:9A080000, 0.26937:08000000, 4.21921:9A080000, 255.27962:FA000000, 255.1494:00000000, 255.26426:FE000000, 4.7588:0F010480, 4.6564:0F010480, 4.14312:9A080000, 4.2199:9A080000, 4.17097:9A080000, 4.8620:9A080000, 255.1750:00000000, 0.26849:2D000000, 255.21817:9A080000, 0.26297:813F0000, 4.16585:9A080000, 0.32441:00000000, 4.1706:9A080000, 0.24761:00000000, 4.20665:9A080000, 0.25785:0F010480, 4.29881:9A080000". ##

Exchange server event log may contain event id 9356:

An ambiguous Mailbox Guid <id> was found on <number> mailboxes in the DS. The store cannot map this Mailbox Guid to a unique user.