Alabama Code Title 6. Civil Practice § 6-9-97

The return of an execution or other process by a sheriff of a county other than that from which the process issued may be made through the postal service, and the certificate of the postmaster that it was placed in his office in time, by the usual course of mail, to reach the courthouse of the county where the return has to be made, by the return day of the writ, shall be presumptive evidence for the sheriff of the fact, but the sheriff is not authorized to send money by the mail without the consent of the plaintiff in execution.