Croatian Post offers you the option of having your mail held or forwarded.
A service you may request as an addressee is to have your mail held at a post office or sorting facility. In that case, you need to submit a written request to obtain this service. According to such request, you mail may be held for up to 30 days. The price of this service is specified in the postal service pricelist.
Forwarding mail to a different address
In addition to having your mail held at a post office or a sorting facility, you can have your mail forwarded to another address if necessary. If you have moved or are away from home, your mail will be delivered to your new address. A request for this service may be submitted at your nearest post office. Mail may be forwarded for up to 90 days. The price of forwarding is specified in the postal service pricelist.