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 …

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 …

Configure Outlook Junk Mail Filter to stop fake e-mail

The fact is that as long as junk mails has at least a tiny degree of effectiveness, say 0.0001%, spam 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 …

Message Classifications (Exchange 2013 – Online)

Send Us a Sign! (Contact Us!) Show More Info This article has total words. (Including header) Message Classifications allow users Read More …

Change Location Outlook Data File (.ost) (Microsoft Outlook)

While it’s usually not necessary to relocate the offline cache used by an Exchange account, it is possible to move Read More …

Change Time Zone – User mailboxes in Exchange 2010/2013/2016/Online

Let’s see how to change time zone in Exchange Server. Let’s say a previous Administrator built the server with the Read More …