Saturday , October 31 2020

Exchange 2016

535 Authentication Credentials invalid on Outgoing mails

Suddenly Outgoing mails stopped. with below error Error : Exchange Toolbox – queue Viewer 4.4.0 Primary Target IP Address Responded with: “535 Authentication Credentials invalid.” Attempted to failover to alternate host, but that did not succeed. Either There are no Alternate hosts, or delivery failed to all alternative hosts. Solution …

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Target Mailbox doesn’t have a proxy matching – Bulk add Proxy Address

Moving to Office 365 – Mailbox Migration Error Error: MigrationPermanentException  “Target mailbox doesn’t have an SMTP proxy matching ‘<domain>.mail.onmicrosoft.com'” error when you try to move mailboxes to Exchange Online Lets see how to add proxy addresses in bulk using powershell. Issue happens only to users where email address policy is …

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