Is there a way to transport delegate-settings to the LDAP directroy / send-as attribute?

In one setup we are using Kopano with openLDAP. We may grant one user send-as rights for an other user bei LDAP object attributes and it works well.

Is there a possibilty to react on delegate-settings in webApp/DeskApp? So when a user adds other users in his delegate list I want to trigger a script which can add this information to the LDAP database.

There is no such script at the moment. But delegations and send-as are two different things, so why would you want to do this?