Postfix – SMTP E-Mail Relay for Office 365

Postfix is a flexible mail server that is available on most Linux distribution. Though a full featured mail server, Postfix can also be used as a simple relay host to another mail server, or smart host. This tutorial will describe how to configure Postfix as a relay through Office 365 service, so using Exchange Online. Read More …

Exchange Online – Preventing Domain Spoofing

In many business environments domain spoofing can be a real threat: this is a common form of phishing and usually occurs when an attacker appears to use a company’s domain to impersonate a company or one of its employees. Read More …

Excel – Allow Certain Users to Edit Cells Range

Excel offers you an ability to assign user-level permissions to different areas on a protected spreadsheet. You can specify which users (usually local or Active Directory ones) can edit a particular range while the spreadsheet is protected. Read More …

Powershell – Connect to Skype For Business Online

Send Us a Sign! (Contact Us!) Show More Info This article has total words. (Including header) In this article, I’ll Read More …

Fix missing Skype for Business meeting add-in for Outlook 2013

Close Outlook 2013 if open, then navigate to C:\Program Files (x86)\Microsoft Office\Office15 and find OUTLOOK. Right-click OUTLOOK and select “Run Read More …

Whitelist addresses in Exchange Online Protection (EOP)

In order to ensure that specific emails are marked as spam or not, Exchange Online or Exchange Online Protection (EOP) Read More …

Office 365 – Export mailboxes to PST using eDiscovery (Exchange Online)

In this article, we are going to show you how to export Office 365 mailboxes to PST files using an Read More …

Office 365 and SMTP Relay (IIS)

Are you trying to set up Office 365 to relay email messages from Line-of-Business applications or network devices? Check the Read More …