Many online shoppers face delays in getting their parcels when Australia Post stops pickups in lockdown states for three days so it can process a backlog.
Collections from digital retailers in NSW, the ACT and Victoria will pause from 7am on Saturday, September 4, to 7am on Tuesday, September 7.
All three jurisdictions are currently under lockdown orders after a surge in coronavirus cases.
"This temporary measure will allow us to responsibly clear record parcel volumes in parts of our network impacted by COVID-19," Australia Post said.
"The safety of our people is our highest priority.
"This will help ensure volumes are kept to a safe and manageable level."
Collections from online retailers in other states and the Northern Territory will continue as normal.
Express Post, Premium and Startrack Express services and collections from post offices are not affected.
© AAP 2021