Installing Virtual PDF Printer on Linux

On Linux, you can use the cups-pdf package to implement a virtual PDF printer. What is a PDF printer? This is a virtual device that is added to the system as a regular printer and when a document is sent for printing, it generates a PDF file from it.

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Postfix: Using Microsoft 365 as SMTP Relay

Postfix mail server is available in almost all Linux distributions. You can use it as a simple relay (smart host) to send email messages from your local network to user mailboxes and forward email queues to SMTP servers outside your organization. In this article, we’ll show you how to set up an SMTP relay for Microsoft 365 (Office 365, Exchange Online) with postfix on Linux (using Ubuntu/Debian as an example).

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