Exchange 2013/2016: HTTP redirection issues with ECP virtual directory – /owa/ecp

Exchange 2013: HTTP redirection issues with ECP virtual directory – /owa/ecp

When you try to access ECP on Exchange 2013, browser redirects to /owa/ecp and shows “Bad Request”

You will see this if HTTP redirection is applied on Default website and those settings got replicated to all Virtual directories underneath.

Let’s look at How to enable HTTP redirect on Exchange 2013.

To enable HTTP to HTTPS redirection on exchange 2013, on IIS VDir highlight Default website and click HTTP Redirect:

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Exchange 2016 Certificate Problem

Khi gặp lỗi như bên dưới, tiến hành kiểm tra Evenlog sẽ thấy lỗi mô tả như bên dưới.

A special Rpc error occurs on server S-XXXXXX: Could not grant Network Service access to the certificate with
thumbprint xxxxxxxxxxxxxxxxxxxxxxxxxxxxx because a cryptographic exception was thrown.
    + CategoryInfo          : NotSpecified: (:) [Enable-ExchangeCertificate], InvalidOperationException
    + FullyQualifiedErrorId : [Server=S-XXXXXX,RequestId=0ce68699-de3e-4ac4-9c7a-094b538d302d,TimeStamp=01/06/2020 13:
   59:03] [FailureCategory=Cmdlet-InvalidOperationException] D9EA479C,Microsoft.Exchange.Management.SystemConfigurati
  onTasks.EnableExchangeCertificate
    + PSComputerName        : s-XXXXXX.xxxxxxxx.co.uk

1. Gỡ bỏ hoặc Disable Antivirus

2. Tiến hành import ssl lại, tham khảo như link bên dưới.

https://www.tbs-certificates.co.uk/FAQ/en/529.html

https://knowledge.digicert.com/solution/SO21653

3. Trường hợp khi import ssl mới, vào Ecp, Exchange Console bị lỗi, tham khảo link bên dưới để fix

http://vnnetwork.blogspot.com/2020/07/an-error-occurred-while-using-ssl.html

An error occurred while using SSL configuration for endpoint 0.0.0.0:444 or Microsoft Exchange 2013/ 2016/ 2019 shows blank ECP & OWA after changes to SSL certificates

An error occurred while using SSL configuration for endpoint 0.0.0.0:444

The other day, one of my Exchange 2016 lab servers stopped working. Well, I say "stopped working" but most things seemed to be working except for the Exchange Management Shell where I would get the following error when opening it:

OWA and ECP were also not working: I would simply get a blank page after signing in...

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Cấu hình IIS SMTP Relay qua Office 365

Cấu hình IIS SMTP Relay qua Office 365 

Yêu cầu phải có IP WAN Static và cấu hình Router như bên dưới.

o   Cấu hình trên Router để Server SMTP chỉ đi internet trên IP WAN này

o   Allow port 25 chiều out

Trên Office 365:

-          Allow IP WAN to O365 phần Connector

-          Allow IP WAN filter phần Connection filter

1.      Vào Office 365 / Exchange admin center

Mail flow / Connector

Tạo connect cho phép IP WAN gửi vào O365

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How do I use Office365 for SMTP?

How to set up a multifunction device or application to send email using Office 365

Applies To: Office 365 Admin

This article explains how you can send email from devices and business applications when all of your mailboxes are in Office 365. For example:

• You have a scanner, and you want to email scanned documents to yourself or someone else.
• You have a line-of-business (LOB) application that manages appointments, and you want to email reminders to clients of their appointment time.

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Check if activation is blocked on that server for the DB

Check if activation is blocked on that server for the DB. The error indicates that

Get-MailboxDatabaseCopyStatus  MBX-DB1\EMAIL2 |FL activationsuspended

or for the entire server

Get-MailboxServer  EMAIL2 | FL DatabaseCopyAutoActivationPolicy

If you want to remove that block:

Get-MailboxDatabaseCopyStatus  MBX-DB1\EMAIL2 |  Resume-MailboxDatabaseCopy

Database Unable to Mount while Restoring the Microsoft Exchange Database

Symptom

When I restore a Microsoft Exchange database, the database is unable to mount. The required logs are missing or the transaction logs are not contiguous. There are event errors such as 454, 455, and 2006 in the event log.

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HOW TO: DELETE AND RE-CREATE THE EXCHANGE ECP VIRTUAL DIRECTORY

To delete the ECP virtual directory of your Exchange server and re-create it from scratch, you can use the below to get the identity of the virtual directory.

get-EcpVirtualDirectory |fl

Use this to remove the virtual directory in question

Remove-EcpVirtualDirectory -identity "MYSERVER\ecp (Exchange Back End)"

Create the new virtual directory use the below

New-EcpVirtualDirectory -externalurl "https://outlook.mydomain.com/ecp" -internalurl "https://myserver/ecp" -Server "myserver.mydomain.local"

HOW TO: REMOVE EXCHANGE MAILBOX EXPORT REQUESTS

HOW TO: REMOVE EXCHANGE MAILBOX EXPORT REQUESTS

After a number of exports or imports, you might need to clean up the failed, completed or other status when running the get-mailboxexportrequest report in PowerShell. To clean these open the Exchange PowerShell and run the below.

Clean Export requests

Get-MailboxExportRequest -Status Completed | Remove-MailboxExportRequest

Get-MailboxExportRequest -Status Failed | Remove-MailboxExportRequest

Clean Import requests

Get-MailboxImportRequest -Status Completed | Remove-MailboxExportRequest

Get-MailboxImportRequest -Status Failed | Remove-MailboxExportRequest

VCenter 6.7: Resizing disk fails with error message

VCenter 6.7: Resizing disk fails with error message

My VCenter recently failed to resize a disk with error “Invalid operation for device ‘0’”. Here’s how I solved it.

VEEAM failed recently to backup one of your servers. The error message was “Error: Virtual disk size is not a multiple of 1KB.”.

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