Team of IT Experts
Microsoft Stopped SMTP from sending emails on PORT 25. A shocking update from Microsoft was released in March 2022 where the SMTP relay stopped working on Porta 25. What we found:Port 25 is stopped working with Azure VMs What configured:As others in the IT sector industry have configured Relay for sending an alert, notice, and … Read more
What is DMARC? Domain-based Message Authentication Reporting and Conformance (DMARC) is a free and open technical specification that is used to authenticate an email by aligning SPF and DKIM mechanisms. By having DMARC in place, domain owners large and small can fight business email compromise, phishing, and spoofing. With DMARC you can tell the world how to handle the unauthorized use of your … Read more
Getting error when opening office application on Azure Virtual Machines: Performed basic troubleshooting, which did not resolve the issue: Updating the office version Re-installed the Office app. Run the online repair. Environment configuration: MFA was set to remember for 1day only. Resolution what found: For those where MFA was set to remember device for 1 … Read more
What is Transport Layer Security (TLS)? Transport Layer Security cryptographic protocol that provides end-to-end security, or TLS is a widely adopted security protocol designed to facilitate privacy and data security for communications over the Internet. TLS is encrypting the communication between web applications and servers, such as web browsers loading a website. TLS can also be used … Read more
What is DKIM (Domain Key identified mail)? Advanced security feature which is used along with SPF to prevent spoofing and phishing attack on the domains. When DKIM is enabled for your domain, all emails sent out from the server will be digitally signed using cryptographic authentication. The receiving server can use this digital signature to … Read more
Can’t restore deleted mailbox even license assigned to the User in office 365 Issue: User has left the organization and re-joined after 2yr. I have assigned the E3 license to the user mailbox after which mailbox should be restored as Mailbox was in Inactive with Litigation/Org. hold on to it. Now it’s giving me an … Read more
SPF (Sender Policy Framework) What Is SPF Record? An SPF record is an email authentication record that can be published in DNS as a TXT record. It helps prevent spoofing and phishing by verifying the sender’s IP address against the return path address domain. Where to configure? To configure an SPF record, you need to … Read more