Knowledge Base

Find useful guides, solutions and more

How do i import subscribers

This is a common question and even though the answer is very very simple, for a reason or another, seems that many people get confused

Receiving Spam From Mailbux?

Mailbux works hard to keep spammers from abusing our service, but spam messages still get through occasionally despite our best efforts. If you’ve received spam

Setup Outlook for Windows

Mail account setup in Microsoft Outlook 2013/16 (SMTP/IMAP/POP3) Email clients, like Outlook, allow you to easily check your emails without Webmail (web-interface). This tutorial will help you

SMTP, POP, IMAP setup details

Mailbux mail server details Incoming server settings IMAP Server hostname: Port: 993 Require SSL: Yes, SSL/TLS Authentication: Password For backward compatibility, IMAP over STARTTLS is available

(DKIM, SPF, DMARC, MX) How and what should I set for DNS for the domains to send/receive properly?

1) How do I set up an MX record? Setting up an MX record at your domain registrar/DNS provider (for your domain name) is a

I want to move my Gmail mails and contact over to Mailbux Mail, Is it possible?

Of course! Not only you can transfer all your contacts and emails to Mailbux but we do it for you for free!

Can I add External Mailbox(Such as Gmail)?

Yes,  At this moment it is possible to add Hotmail, Gmail, Yahoo accounts in our Webmail.

How to add multiple Mailbox using Mailbux Mailbox Application?

Simple, All you need to do in the Mailbux Mail ( is to click on the top-right button: Pro tip: You can add your Gmail,

I don’t receive emails or can send from the Mailbox, Why?

Solution: You have to add Mailbux MX records and check you don’t have Google MX records or any other MX in your DNS records. Check

My domain is blacklisted, What should I do?

You can try to contact the company who blacklisted your domain if it is a mistake or use another domain. Find who blacklisted you here:

My emails going to spam, why? (Including Blacklist possibility)

There are a few reasons: Your domain age is under 30 days. There is a new policy which Blocking NODs (Newly Observed Domains). The following

The user you are trying to contact is receiving mail at a rate that 450-4.2.1 prevents additional

Symptoms: [email protected]: host[] said: 450-4.2.1 The user you are trying to contact is receiving mail at a rate that 450-4.2.1 prevents additional messages from

Undelivered Mail Errors: Why wasn’t my e-mail delivered?

There are several reasons for undelivered mails. You can find the most frequent reasons for errors below and some hints on what you can do