Karsten Otto closed JAMES-3851.
    Resolution: Fixed

> TLS host name verification should handle trailing dot
> -----------------------------------------------------
>                 Key: JAMES-3851
>                 URL: https://issues.apache.org/jira/browse/JAMES-3851
>             Project: James Server
>          Issue Type: Bug
>          Components: Remote Delivery
>    Affects Versions: master
>            Reporter: Karsten Otto
>            Priority: Major
>          Time Spent: 50m
>  Remaining Estimate: 0h
> I noticed that sometimes RemoteDelivery opens a connection using a fully 
> qualified hostname that ends with a trailing dot, like "mail.example.org." I 
> believe James may get that from MX resolving, since afaik DNS servers may do 
> this to indicate an absolute FQDN vs. a relative one. This is not an issue 
> when establishing a connection, but will break TLS hostname verification, 
> since the CN and SubjectAltNames in server certificates never use trailing 
> dots.
> Consequently, RemoteDelivery should strip a trailing dot from the hostname 
> before connecting.

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