Ala. Code § 43-2-48

Letters testamentary or of administration and letters to a special administrator or to any general administrator, sheriff or coroner, granted by any court having jurisdiction, are conclusive evidence of the authority of the person to whom the same are granted, from the date thereof until the same are revoked; and, when granted, such letters exclude the probate court of every other county from the jurisdiction thereof and extend to all the property of the deceased in the state.