 Lead Messaging Architect and Engineer for several environments (including Wall Street financials, shipping companies, large hosting providers, government, hospitals, integration companies). Provide email migration and design architecture, engineering, and configuration troubleshooting for Microsoft Exchange Online, Microsoft 365, Exchange 2019 designs and migrations from Exchange legacy on-prem servers and server farms including Exchange 2019, 2016, 2013, 2010, POP3, IMAP4, GroupWise, Gmail, IBM Domino Lotus Notes, Zimbra and Unix email migrations. Lead Exchange engineer for Exchange server hardware recommendations, routing diagrams, migration strategies, engineering troubleshooting, disaster recovery, DAG configurations, high availability solutions, and email migration support strategies, knowledge base articles and email migration support mentor and trainer for Exchange Admins, O365 Admins, remote support, and helpdesk. Engineered, configured, and troubleshooted connectors and mail routing complications with Exchange on-prem, Exchange Online, Exchange Hybrid Servers, Proofpoint, Barracuda, and Mimecast mail gateways for content filtering, SPAM, phishing, ransomware, and malware email protection. Configured SPF to allow third party mail partners, like company newsletters to be allowed into the mail system, and blocked others. Prevented company custom email domains from malicious spoofing attempts into environment with spam algorithms, Exchange Online Protection (EOP), SPF, DMARC, and DKIM customizations for CNAME records for email security and protection. Setup, customized, and tested new M365 tenants for various customers and tenant-to-tenant migrations, enabled custom licenses, configured and synced accounts with Microsoft Azure AD Connect, configured external and internal DNS, and connectors for SMTP mail routing, CNAME records for Autodiscover, SPF records, A, MX, and SIP records for Microsoft Exchange Online,

Lead Messaging Engineer and Practice Manager for high-end email migration services for various companies and international corporations.