Home
Features
Modules
Integrations
PowerMTA Docs
MailerQ Docs
Pricing
Blog

Home
Features
Modules
Integrations
PowerMTA Docs
MailerQ Docs
Pricing
Blog

Home
Features
Modules
Integrations
PowerMTA Docs
MailerQ Docs
Pricing
Blog

Home
Knowledge base

Knowledge base

MailerQ knowledge base Broker wiring queue taken from the build

unroutable verified

Unroutable queue

Catches messages an exchange could not route anywhere.

In the Hub

Who decidesMailerQ itself

Written by the Hubno

integration levelL1

Hub uses the default exchange; nothing can be unroutable.

Relations

depends on(default exchange)Only meaningful once a custom exchange replaces it.

Nearby in this section

cluster failure outbox success outbox+NNNN to: domain (id)(default exchange)

MTA-Hub is a control panel for SMTP infrastructure on PowerMTA and MailerQ. It runs on your own server.

Node sizing and cost estimates, MTA installation, DNS and signing keys, Proxy Gate, IP warm-up, monitoring and export of ready SMTP to Protosender, Interspire, Mumara and MailWizz.

site@mta-hub.com @master_mail

Sending scripts

Protosender
Interspire
Mumara PRO + ESP
Platform comparison

MTA & delivery

PowerMTA
MailerQ
MTA-Hub
PMTA or MailerQ?

Ecosystem

KendaliCRM
AI Core System
MailCore System

Information

Contacts
Turnkey infrastructure
Find your solution
Your own email service

© 2026 MTA-Hub. Developed by AI Core System.

Privacy Policy
Terms of Use