Exchange 2013/2010 – 421 4.4.2 Connection dropped due to SocketError

Hello Exchange Experts, couple of my customers have an exchange 2013 servers reported that they faced a strange issue in their exchange servers. Some of sent emails for specific domains stuck in the queue shown an error as below: ‘400 4.4.7 Message delayed’ – Remote Server at Customerdomain.com (xxx.xxx.145.250) returned ‘441 4.4.1 Error encountered while communicating with …

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Customize Azure Multi-factor Authentication – Part 1

Hello All, In First part of Azure MFA series, we discussed the general concept of Azure MFA and how you can integrate it with your systems based on your requirements. In the second and Third part, we implemented a real MFA scenario to secure the remote desktop access to servers (RDP). In this part we …

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