Postmaster Malown

Stratholme
From the main gate, clear the streets toward Festival Lane and Market Row without crossing the next arch during an existing pull. The Unforgiven ambush brings Vengeful Phantoms into the street. Check for Hearthsinger Forresten and Skul while travelling, but do not depend on either rare appearing. Ezra Grimm's tobacco box and the postboxes are deliberate side encounters; clear their surroundings before interacting.
Postmaster Malown
Elite UndeadMalown turns the postbox detour into a fear-and-curse fight where a slowed healer and a stunned tank can leave the pull without a working response.
Abilities

Backhand
Backhands an enemy, stunning it for 2 seconds.
Backhand stuns its victim. Keep the tank's health buffered and avoid taking a fresh postbox pull during that loss of control.

Fear
Strikes fear in an enemy, causing it to flee in terror for 4 seconds. Only 1 target can be feared at a time.
Clear around the chosen postboxes before the event so Fear sends players through safe streets rather than surviving packs.

Curse of Weakness
Remove Curse of Weakness from weapon attackers when possible so the fight does not stall under reduced Physical damage.

Curse of Tongues
Forces an enemy to speak in Demonic, reducing its casting speed by 50% for 15 seconds. Only one curse per warlock can be active on any one target.
Prioritize Curse of Tongues on the healer; its casting slowdown makes recovering the tank after Backhand harder.

Incorporeal Defense
Incorporeal Defense increases dodge; keep spell damage contributing while the party handles Malown's curses.
Tank- Start the postbox event only with a cleared escape area for Fear. Keep Malown and the current pull in that space so Backhand does not leave attackers loose beside the next unopened box.
Healer- Ask the curse remover to prioritize Curse of Tongues on you. Keep the tank healthy enough to survive Backhand while fear or a casting slowdown interrupts your response.
Damage- Remove the healer's Curse of Tongues before Curse of Weakness on an attacker when both need attention. Finish Malown and the current postbox pull before opening another box.