Viewing articles tagged 'SMTP'

Domain Lockdown & SMTP Error 550 5.7.1 Sender Not Authorized

Issue: A new customer using Google Workspace after migrating to our platform realized that he...
How To Change Hostname and SMTP Banner in Postfix on Plesk

In this tutorial, I'll guide you through the steps to change the hostname and SMTP banner in...
How To Resolve Maximum Line Length For SMTP Transports Error In cPanel

This guide aims to walk you through fixing the "Maximum line length for SMTP transports"...