Sysadmin
Sysadmin
What are DMARC, DKIM, and SPF and how to setup them
What are they? DMARC, DKIM, and SPF are three email authentication mechanisms that help prevent email misuse, such as phishing...
Sysadmin
How to check and repair windows file system
Fortunately, nowadays there are other ways to check and repair the system files of your Windows 10 or 11 device...
Sysadmin
How to enable TLS 1.2 in Outlook 2007 or 2010 on a Windows 7
TLS (Transport Layer Security) is an encryption protocol that provides secure communication over a network, typically the internet. As a...
Sysadmin
How to enable SMS code multifactor authentication in Microsoft Office 365
Since some weeks ago, I have realized that Microsoft has changed the default multifactor authentication values for new created users...
Sysadmin
Problems to start session on Microsoft Teams
If you are an administrator of the Microsoft Office 365 software, it is quite probable that you have faced with...
