Mailbox

In in-game mailbox is used to send the following types of messages:

your arcane crystal reward and position on the leaderboard when your guild's Arcane Crystal is broken
your milestone reward when you reach certain character level milestones
your rank rewards from the Arena of Kings
any unclaimed rewards from the Battle Pass at the end of the month

Town	Alchemist • Battles (Warfront Campaign • Arena of Kings) • Engineer (Garage • Training Base) • Exotic Merchant • Hall of Heroes • Leaderboards • Library • Map • Magic Quarter • Merchant Ship • Oracle • Pirate Ship • Shop • Tavern (Scarab's Game) • Temple of Eternals
Guild	Arcane Crystal • Awakening • Bank • Chaos Rift • Expeditions • Forbidden Knowledge • Goblin Balloon • Guild Hall • Guild Perks • Guild Shop • Tree of Life

Firestone	1 • 2 • 3 • 4 • 5 • 6 • 7 • 8 • 9 • 10 • 11 • 12 • 13 • 14 • 15 • 16 • 17 • 18 • 19 • 20 • 21 • A • B • C
Meteorite	1 • 2 • 3 • 4 • 5 • 6 • 7 • 8 • 9 • 10 • 11 • 12 • 13 • 14 • 15 • 16 • 17 • 18 • 19 • 20 • 21 • A • B • C
Exotic Upgrades	1 • 2 • 3 • 4 • 5 • 6 • 7 • 8 • 9 • 10 • 11 • 12 • 13 • 14 • 15 • 16 • 17 • 18 • 19 • 20 • 21 • A • B • C • D
Alchemy	1 • 2 • 3 • 4 • 5 • 6 • 7 • 8 • 9 • 10 • 11 • 12 • A • B • C • D • E
Misc	Achievements • Amulets • Ancient Artifacts • Beasts • Blessings • Forbidden Knowledge• Golden Pass • Lost Inscriptions • Luck Level • Sacred Cards • Scarab Level • Talents

Rage	Talia • Boris • Asmondai • Danysa • Sely • Randal • Hongyu
Energy	Burt • Muriel • Astrid • Ina • Fini • Molly • Joe • Amun
Mana	Solaine • Benedictus • Leo • Blaze • Luana • Valerius • Iseris • Belien • Layla
Mercenaries	Panko • Yavo • Cirilo • Vilon • Anzo • Zelea • Zoruk • Jess • Rickie
Dark Gods	Ledra • Yamanoth • Kramatak
Guardians	Vermilion • Grace • Ankaa • Azhar

Mechanics	Battlefield • Character • Enemies • Fellowship • Inventory • Map • Party • Randomness • War Machines
Items	Celestial Chests • Currencies • Gear • Gear Chests • Inventory Items • Jewels • Jewel Chests • Oracle's Gifts • Mystery Boxes • Scrolls • Seals of Power • Soulstones
Activities	Arena of Kings • Battle Pass • Chaos Rift • Daily Missions • Daily Quests • Daily Rewards • Weekly Quests • Weekly Rewards
Events	Warfront Expansion Event • Valentine's Event • Tropicana Event • Halloween Event • Winter Festival Event • Spring Event • Space Event • Decorated Heroes Event • Mini-Events • 5 Year Anniversary Event • 6 Year Anniversary Event • New Player Event
Misc	All Levels • Avatar • Game Chat • Mailbox • Platforms • Platform Achievements • Servers • Skins • Special Offers • Stars • Statistics • Tutorial • Unlock Offers