How to convert an Office 365 mailbox to a shared mailbox
Also known as: What to do when an employee leaves and you want to keep their email but you don’t want to pay for a
How to troubleshoot email via Gmail’s ‘Show original’ menu
Troubleshooting email is very interesting because often two emails problems are not the same. One of the most powerful tools in the email system administrator’s
IMAP or POP3: What’s the Difference? Which Should You use?
Overview When it comes to setting up the email address that you host with us on your devices, you will have two protocols to choose
Postfix reports server-name postfix/trivial-rewrite[1652032]: warning: do not list domain server-name.example.com in BOTH mydestination and virtual_alias_domains
On your stock email server you might see the following message repeatedly in the log file: Aug 20 08:55:18 server-name postfix/trivial-rewrite[1652032]: warning: do not list
Dovecot IMAP Login Process Limit Reached
Problem Description On a busy Dovecot email server you might encounter the following serious problem in the log file: tail -f /var/log/mail.log | egrep -i
How to set a good defaults for DMARC records on a Virtualmin server with many domains
Background If you’ve got a perfect Virtualmin setup, you might notice that MX Toolboxes’s Email Health checker complains about DMARC. Next you might wonder what
How to deal with “Helo command rejected: ACCESS DENIED” on a Postfix / Kopano email server
On a Postfix email server with paranoid HELO security your clients might contact you because they are not getting email. Upon examining the email log
On Mac Mail, and Outlook, How do I ensure that the outgoing server is using authentication?
A bad day at the office is if you’re entire email system goes down, apparently due to a firewall issue. This article documents with screenshots
How to install and use IMAPSYNC on Ubuntu
IMAPSYNC is an incredible utility to migrate email accounts between different servers. It just works. One important aspect is to always try and use the
Steps to convert an account to a shared mailbox on Microsoft Office 365
Background People come and go in organisations. The responsible IT administrator makes sure when people leave their digital information is taken care of. In this