Poslaju is fine, you can send it at any pos office or poslaju centre.

You don't have to wrap the box if it is plain colour, just make sure it is secured, cellophane taped all over. And you can also request from the counter for a flyer (the plastic bag) to add to its protection against rain etc.

Poslaju is like any other courier, so the delivery needs to be signed by the receiver. Not much difference between Poslaju and other private courier except the price. For documents, Poslaju rate is usually the cheapest, unless if it is heavy (other couriers may get cheaper if the parcel gets heavier, e.g. more than 10kg). DHL is international company so it is much more expensive. (In fact I'm not even sure if DHL do pure domestic business or only cater cross-country shipments).

Another difference is most local private courier needs you to have an account with them to use their service. For poslaju you don't need to open an account.

Are you sending a big bulk of document that cannot be fit into an envelope? Note that any of these courier charge by weight so unless it is necessary, don't send by bulky box as this will only add to the cost.

Whether they will call or not, it depends on the drivers regardless of the company. I've met good guys as well as bad guys from either Poslaju or other private couriers.

No worries, I didn't mean to point any wrong, we are just sharing our experience .

My worst experience was with Skynet, once the driver just tossed up my parcel inside my gate, and so happen it got drenched up by the rain. When I checked the online tracking info, the driver even have nerve to invent the name of the recipient .

Oh and another advice to TS, take note of the tracking number and check yourself its whereabout from time to time. Do not rely on them to call/inform you on the status of the delivery.