How to configure Hostname in PowerMTA
By default, PowerMTA uses the server’s hostname. You can specify a custom hostname per Virtual MTA. To set a hostname
iRedMail Intentional policy rejection
On an iRedMail, when receiving an email from steam, the mail server rejects the email with the error message “Recipient
554 5.7.1 Unknown Sender in Local Domain
When sending an email from one server to another, the email gets bounced with an error The error is because
Google Workspace DKIM authentication settings failed.
When generating DKIM in google Google Workspace I got the following error message. This error happens when you have a
.forward file
Users can create a .forward file in their home directories that is used by mail servers like exim, sendmail used
postfix smtp Must issue a STARTTLS command first
When sending an email to a server, mail bounced with the following error message. To fix the error, first enabled
Mailwizz
Where MailWizz configuration file located?
Where Mailwizz configuration file located?
Mailwizz configuration file located at When you migrate a MailWizz installation, you need to update this file and change Database
How to find Zimbra version
To find the Zimbra version, log in to the server using SSH, then run the following commands. Switch to user
Flush exim mail queue
To flush mail queue, run command Force another queue run Force another queue run and attempt to flush the frozen
Microsoft 365
Exchange admin center URL https://outlook.office365.com/ecp/ (old) https://admin.exchange.microsoft.com/#/homepage (new) Login to webmail https://outlook.office365.com/ Admin Area https://admin.microsoft.com/ How to open support request
Roundcube add generic message in footer
Add message to footer of outgoing mails. Edit config/defaults.inc.php Add Now in root folder of roundcube, create a file message_footer.txt