Is it better to send visa documents from Australia to Thailand via a post office or a courier service?

The best way to send documents from Australia for a visa application in Thailand involves considering delivery methods like Australia Post and DHL. While some recommend Australia Post for reliability and cost-effectiveness (with delivery estimated at 8-10 days via registered mail), experiences vary with other services like DHL causing delays. It might be wise to send a second copy through a different service for redundancy. Additionally, recipients should ensure the documents are authenticated by the Australian embassy in Thailand, which can incur extra costs.