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Email Hosting

Get started fast with installation and theme setup instructions

How to change from Crossbox as default webmail provider

Stuck on CrossBox and not sure how to change? Read this!

How do I enable PHPMail() on my account?

How to enable PHPMail() to send messages via PHP

What is MailChannels?

SMTP relay service that identifies spammers within your network

What are the correct SPF records when using Tbx Host hosting?

Why all our mail is routed through a premium delivery service

What are my Email Sending Limits?

All outbound emails are sent through a premium relay service

Why are my emails being treated as SPAM?

Most email service providers use complex anti-spam filters.

550-Please turn on SMTP Authentication in cPanel

What is the 550 error and how to solve it.

550 This message was classified as SPAM and may not be delivered

This page is designed to assist those users getting the 550error message within their email

Common email bounce messages / errors

Often, if an email delivery fails, the original email is returned to its sender

MailChannels – How do I report a ‘false positive’?

When a spam message is delivered instead of being blocked

MailChannels – Fixing the 550 5.7.1 [SS] error

If you’re receiving this error, it means we have detected abuse from your email account.

Email – What is the difference between SSL, TLS, and STARTTLS?

The terms SSL, TLS, and STARTTLS are often used in relation to securing a connection

MailChannels – Which IP Addresses does it send from?

MailChannels sends from a large number of IP addresses

Exim Cheatsheet

Here are some useful things to know for managing an Exim 4 server.

Find SPAM Sending Scripts via the Exim Logs

Find SPAM Sending Scripts via the Exim Logs