Tag Archives: resolver

[TSHOOT] – Exchange 2010 : 550 5.1.1 RESOLVER.ADR.ExRecipNotFound error message when you send email messages

By | 18 May 2017

Hello, Just a little post to troubleshooting an error in Exchange 2010 ! Last week, when i’ve a big problem with my exchange server, some users doesn’t send an email to the external address ! They receive this type of error : Generating server: <server name>.local IMCEAEX-_O=CONTOSO_ou=first+20administrative+20group_cn=Recipients_cn=<username>@<server name>.local #550 5.1.1 RESOLVER.ADR.ExRecipNotFound; not found ## To resolve this… Read More »