Can this mailbox be mounted on the wooden mailbox post linked below? Does the mailbox come with everything needed to mount it on this mailbox post? https://www.wayfair.com/outdoor/pdp/wilray-designs-81-h-in-ground-decorative-post-wddw1010.html

Yes, all Mail Boss curbside mailboxes come with 4 lag screws for installation into wood surfaces. I am unsure if the dimensions of that post accommodate the mailbox, but as long as there is plenty of support underneath the mailbox then you should be good to go! Give us a call at 1-800-589-7990 if you need any further assistance.