Exchange server trobleshooting

Hello, i am Christian,45 Years old german Systems Engineer with now over 27 years Years of Experience. Proficiency/Expertise: Windows Server from NT 4.0 to 2019, Active Directory,DNS,DHCP,DFS,File&Storage Server,Security,Group Policy,IIS,Print Server,RDS (Terminal Server) Cross Forest Migrations Mail Server : Exchange 5.5-2019,Office 365,Hosted Exchange,LYNC,Skype for Business, HMail, iRedMail Virtualisation: HyperV,Proxmox,VMWare,KVM,WHMCS Failover Clustering Windows Software Update Services (Wsus),Windows Deployment Services (WDS) Windows Embedded System Center (SCVMM,SCCM,SCOM,DPMBackup) Backup: Veeam,BackupExec,Arcserv,SCDPM,Windows Backup,Cloud Backup Storage: NetApp,NAS4Free,Nextcloud Firewall: pfsense,opnsense,Securepoint,Smoothwall,Sonicwall,Sophos Antivirus : Trend Micro Office Scan, Smart Protection Server, Control Manager, Scan Mail for Exchange Office 2003-Office 365 Remote Tools Server Setup : Anydesk, Teamviewer, Simple-Help, Connect Wise ( Screenconnect ) Ticket Systems : OTRS, Zendesk, OSTicket Web Development : Typo3 and Magento Phone Systems : Swyx, 3CX, freePBX Certifications: MCSE-Private Cloud MCSE-Server Infrastructure MCSE-Messaging MCSA-Windows Server MCITP MCP Linux Certified Swyx Administrator Certified 3CX Administrator

hello, I have very experience in exchange server and O365, about all I am certified in exchange Server and Office 365.

Je suis un administrateur système et sécurité avec une long expérience . Je travail avec les produits Microsoft dont exchange server et je peux résoudre votre problème.

I can resolve your issue as currently I have migrated some mailboxes from Exchange Server 2016 to 2019 with same Organization.

I am Microsoft system engineer working on Windows server since 2008 to Windows server 2019 and Exchange since 2010 to Exchange 2019 and Office 365 Migrations Exchange Server : Designing Exchange Servers, Implementing Exchange Servers 2007/2019, Configuring High Availability Features, CAS Arrays, DAG, Migrating Exchange Servers, Configuring Mail Flow, Configuring Organization wide transport rules, Configuring Certificates, Configuring Outlook Anywhere, Custom Address Lists, Mailbox Tiering, Site Resiliency, Sizing Exchange Servers, Exchange Servers Disaster Recovery, Backing UP, Restoring, Implementing Exchange Edge Servers Active Directory: Designing Active Directory Infrastructure 2003 / 2019 , Sites and subnets, Group Policies, Replication Troubleshooting, Applying Best Practices, Migrating Active Directory Services, Controlling FSMO roles. Sql Server installation , Migration , HA

Hello there; I can support you remotely for this problem. I also guarantee that it will work in ideal performance after configuration.