Mailvault Midnight

MidnightHealerHelper, the addon which places a buttongrid underneath or on side of the unitframes in party or raid. Just put spells from spellbook in there.

Post-combat rotation trainer for WoW. Adaptive Rotation Trainer analyzes your casts, procs, cooldowns and weaknesses after combat, then recommends adaptive rotations, opener improvements and safe export options.

StockVault is the Vault Suite inventory and storage addon for World of Warcraft: Midnight.

Provides information about your alts

Postal: Enhanced Mailbox support

MerathilisUI is a decorative AddOn for ElvUI.

The original AH AddOn

Shows your purchases/sales on the AH, crafting orders, vendored items, quest rewards, loot pickups and mails

Bulk mail sending made really easy

Bulk mail reception made really easy

Alt Collection Management

MailMatic greets you with an on-screen pop-up and a sound the moment new mail arrives, including at login. Per-race, per-gender voice lines, a wax-sealed envelope icon, and adjustable text, position, and timing. Fully localized. /mailmatic to set up.

A gold tracking addon that displays your gold, tracks session earnings/expenditures and shows gold totals across all your characters with customisation options and mailing features with ElvUI and Titan Panel support.

Open all your mail

Tools which boosters should find useful.