Usman Ghani Chaudhry
Writes and maintains the guides on EmailAudit.io. Enterprise IT infrastructure background, with expertise in on-premises Exchange, Exchange Online and Office 365, and Microsoft MCSE: Productivity and MCITP: Exchange certifications.
Background
Usman works across enterprise IT infrastructure: Windows Server and domain administration, VMware virtualization, and cloud solutions. Messaging is a particular area of expertise, covering on-premises Exchange, Exchange Online and Office 365 (Microsoft 365). Email authentication is one part of that wider picture, and the part these guides focus on.
Certifications
As listed on the public LinkedIn profile:
- Microsoft MCSE: Productivity
- Microsoft MCSA: Windows Server
- Microsoft MCITP: Exchange
- VMware VCP-DCV
How the articles are sourced
Technical claims are checked against the standards (RFC 7208 for SPF, RFC 6376 for DKIM, RFC 9989 for DMARC, RFC 8461 for MTA-STS) and against each vendor's current documentation. Each guide ends with a sources section, and vendor-specific steps carry a “last reviewed” note because interfaces change. Statistics appear only when a named public source is cited.
Corrections
Found something out of date or wrong? Use the contact page and name the article. Corrections are made in the article and the modified date is updated.