Activesync Issues Exchange 2016

Question

Hi guys.

I have Exchange Server 2016, with ActiveSync enabled.

Through Outlook on PC and through OWA, everything works perfectly.

If I go into my account via outlook app on android, it syncs the emails, there are all incoming and they come in, but I can't send the email, it comes back with an error:

"EasSendFailedPermanentException: An EAS Send command failed: The EAS command failed with Status MailSubmissionFailed, Code ='120' and HttpStatus OK. --> The EAS command failed with Status MailSubmissionFailed, Code ='120' and HttpStatus OK. Failure code: da97".

Who can help with the problem?

Answer 1

Hello @Vitalii Mishchenko !

Please check this : ------->

User principal name check

Most Exchange ActiveSync devices request the email address and password to set up the device. This combination only works when the user principal name value matches the email address for the user. Verify these two attributes have the same value. To do this, follow these steps:

Open the Exchange Management Shell.

1. Run the following cmdlet to retrieve the attribute values:

PowerShellCopy

Get-Mailbox user | fl UserPrincipalName,PrimarySmtpAddress

Does the UserPrincipalName match the PrimarySmtpAddress for the user?

• If yes, see Policy error.
• If no, see Domain suffix check.

Domain suffix check

Verify that the appropriate domain suffix is available for the UserPrincipalName attribute. To do this, follow these steps:

Open Active Directory Users and Computers.

Locate the user object and double-click to view the properties.

Go to the Account tab and select the drop-down list for the User logon name.

Is the SMTP address domain listed in drop-down?

• If yes, see Modify the User Principal Name.
• If no, see Add UPN suffix; Modify the User Principal Name.

Add UPN suffix; Modify the User Principal Name

Add UPN suffix

To resolve this issue, you will need to add the primary SMTP address domain to the UPN suffix list. To do this, follow these steps:

Open Active Directory Domains and Trusts.

Right-click on Active Directory Domains and Trusts and select Properties.

Enter the primary SMTP address domain and select Add and then select OK.

Modify User Principal Name

To resolve this issue, modify the UserPrincipalName attribute for the user. To do this, follow these steps:

Open the Exchange Management Shell.

1. Run the following cmdlet to modify the UserPrincipalName:

PowerShellCopy

Set-Mailbox user -UserPrincipalName user@fabrikam.com

Did modifying the UserPrincipalName resolve the issue?

• If yes, congratulations, your ActiveSync issue is resolved.
• If no, see Policy error.

Modify the User Principal Name

To resolve this issue, modify the UserPrincipalName attribute for the user. To do this, follow these steps:

Open the Exchange Management Shell.

1. Run the following cmdlet to modify the UserPrincipalName:

PowerShellCopy

Set-Mailbox user -UserPrincipalName user@fabrikam.com

Did modifying the UserPrincipalName resolve the issue?

• If yes, congratulations, your ActiveSync issue is resolved.
• If no, see Policy error.

Policy error

Exchange ActiveSync includes the use of ActiveSync mailbox policies. The available device settings are dependent on each device and not all settings work with all devices. To determine if the ActiveSync mailbox policy is an issue, create a new ActiveSync mailbox policy and assign it to the user. To do this, follow these steps:

Open the Exchange Management Shell.

1. Run the following cmdlet to create a new ActiveSync mailbox policy:

PowerShellCopy

New-ActiveSyncMailboxPolicy -Name "Test ActiveSync Policy"

1. Run the following cmdlet to assign this new policy to the mailbox:

PowerShellCopy

Set-CASMailbox user -ActiveSyncMailboxPolicy "Test ActiveSync Policy"

I hope this helps!

Kindly mark the answer as Accepted and Upvote in case it helped!

Regards

Answer 2

Hello

Welcome to Microsoft QnA!

First please try the Poweshell

Test-ActiveSyncConnectivity

https://learn.microsoft.com/en-us/powershell/module/exchange/test-activesyncconnectivity?view=exchange-ps

If everything checks out then

Try another Device

Update the App

Apply all latest Updates to the Exchange Servers

Research this link

https://support.microsoft.com/en-us/topic/current-issues-with-microsoft-exchange-activesync-and-third-party-devices-53a1ffbe-504c-a424-012a-cb4456e94ba9

It has a lot of details , scroll down there is a mention

Issue 2.12 - Android device cannot synchronize with Exchange

After the ActiveSync profile is configured, the device receives new items for an undetermined time and then stops updating.

Cause

The ActiveSync mailbox policy has a refresh policy defined. The device receives a response with status 143 - Error:PolicyRefresh. The device does not send a provision command as needed.

IIS log example:

Cmd=Sync&User=contoso%5Ce15&DeviceId=android1362622918557&DeviceType=Android&Log=PrxFrom:10.0.1.151_
V141_HH:mail.contoso.com_SmtpAdrs:e15%40contoso.com_NMS1_Fet78_TmTr:TID%3a18%3e%3e%5bID%3aH%5FEPR%2c
Start%3a2%3a40%3a30+PM%2cEnd%3a2%3a40%3a30+PM%2cExcl%3a0+ms%2cChild%3a%5bNONE%5d%2c%5dTID%3a50%3e%3e
%5bID%3aH%5FBPR%2cStart%3a2%3a40%3a30+PM%2cEnd%3a2%3a40%3a30+PM%2cExcl%3a15+ms%2cChild%3a%5bID%3aH%5
FRMBP%2cStart%3a2%3a40%3a30+PM%2cEnd%3a2%3a40%3a30+PM%2cExcl%3a0+ms%2cChild%3a%5bNONE%5d%2c%5d%2c%5d
_Pk3609689902_DevOS:Android+4.1.2_S143_Error:PolicyRefresh_As:AllowedG_Mbx:CLT-E15-MBX1.contoso.local
_Throttle0 

Solution

Set the refresh interval for the ActiveSync mailbox policy to Unlimited.

Send us your feedback and more details like what Device is this , Android , iOS , etc

Any recent changes in your config ?

Do you have Hybrid Exchange ?

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I hope this helps!

Kindly mark the answer as Accepted and Upvote in case it helped!

Regards