ITEXVN

SMTP Relay gửi group có bật "Require all that senders are authenticated" không được Cần Clear "Require all that senders are authenticated" Get-DistributionGroup|where {$_.RequireSenderAuthenticationEnabled-eq$True}|Set-DistributionGroup-RequireSenderAuthenticationEnabled:$False Để bảo mật hơn (ngăn spam từ bên ngoài vào group) => Thêm chỉ nhận mail từ group A11Organization           Get-DistributionGroup | set-distributiongroup -AcceptMessagesOnlyFromDLMembers A11Organization   Quá trình clear có thể bị lỗi Open/Closed group Tra danh sách group đang set là Open: Get-DistributionGroup -resultsize unlimited |ft name,memberjoinrestriction,memberdepartrestriction Set Close cho các group: Get-DistributionGroup | set-DistributionGroup -memberjoinrestriction:closed -memberdepartrestriction:closed

 Mặc định timeout của OWA là 6hrs Chúng ta có thể set lại timeout bằng cách sau (vd 5 phút): Set-OrganizationConfig -ActivityBasedAuthenticationTimeoutInterval 00:05:00

Quá trình chuyển đổi mailbox từ 2010 qua 2016 sẽ cần giai đoạn trung gian. Để đảm bảo user trên 2010 và 2016 đều có thể truy cập được Public Folder trong giai đoạn trung gian này thì ta cần làm Proxy Public Folder 1. Create an empty mailbox database on each public folder server. New-MailboxDatabase -Server EXVDC3 -Name ProxyPublicFolderDB -IsExcludedFromProvisioning $true Lưu ý là database này chỉ chứa Proxy Public Folder Mailbox, không được chứa bất kỳ mailbox nào khác. 2. Create a proxy mailbox within the new mailbox database and hide the mailbox from the address book New-Mailbox -Name ProxyPublicFolder -Database ProxyPublicFolderDB Set-Mailbox -Identity ProxyPublicFolder -HiddenFromAddressListsEnabled $true 3. Enable AutoDiscover to return the proxy public folder mailboxes Set-MailboxDatabase ProxyPublicFolderDB -RPCClientAccessServer EXVDC3 4. Configure the user mailboxes to allow access to the legacy on-premises public folders Set-OrganizationConfig -PublicFoldersEnabled Remote -R...

  Lỗi do chưa set Permission cho Exchange Authentication trong Receive Connector : Default Connector Relay Connector

  Solution for a valid Migration mailbox could not be found for this organization To address this issue, we will: Delete Migration mailbox in Active Directory Users and Computers Recreate Migration mailbox with /PrepareAD command Enable Migration mailbox with Exchange Management Shell 1. Delete Migration mailbox in Active Directory Users and Computers We do see the mailbox in ADUC, let’s remove it. If you don’t see it, search for it. It might be in a different container than the default container  Users . We can always verify in Exchange Management Shell if the Migration mailbox is present. If it shows up in the output, it means that it’s present and enabled. The output should be empty. [PS] C:\> Set - ADServerSettings - ViewEntireForest $true ; Get - Mailbox - Identity "Migration.8f3e7716-2011-43e4-96b1-aba62d229136" - Arbitration | Format-Table Name , ServerName , Database , AdminDisplayVersion , ProhibitSendQuota Copy 2. Recreate Migration mailbox with /Prepare...