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Internal email bouncebacks. Exchange 2010. RRS feed

  • Question

  • One user at the domain I manage get random bouncebacks when sending to internal email addresses.  Not sure how to deal with this as it is totally random.

    In this example only one internal user bounced.

    Here is the bounceback message:

    Diagnostic information for administrators:

    Generating server: HG-EX-01.contoso.local

    IMCEAEX-_O=HW-NHS_OU=EXCHANGE+20ADMINISTRATIVE+20GROUP+20+28FYDIBOHF23SPDLT+29_CN=RECIPIENTS_CN=Barbara+20Becerra65a@domain.us Remote Server returned '550 5.1.11 RESOLVER.ADR.ExRecipNotFound; Recipient not found by Exchange Legacy encapsulated email address lookup'

    Original message headers:

    Received: from HG-EX-01.contoso.local (192.168.xxx.31) by HG-EX-01.contoso.local
     (192.168.xxx.31) with Microsoft SMTP Server (version=TLS1_2,
     cipher=TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384_P256) id 15.1.845.34; Thu, 12
     Sep 2019 12:35:26 -0700
    Received: from HG-EX-01.contoso.local ([fe80::146f:9222:11f:5e88]) by
     HG-EX-01.contoso.local ([fe80::146f:9222:11f:5e88%13]) with mapi id
     15.01.0845.039; Thu, 12 Sep 2019 12:35:26 -0700
    Content-Type: application/ms-tnef; name="winmail.dat"
    Content-Transfer-Encoding: binary
    From: Malorie McCurdy <Malorie@domain.us>
    To: Kelly VanHoorebeke <Kelly@domain.us>
    CC: "barbara@domain.us"
            <IMCEAEX-_O=HW-NHS_OU=EXCHANGE+20ADMINISTRATIVE+20GROUP+20+28FYDIBOHF23SPDLT+29_CN=RECIPIENTS_CN=Barbara+20Becerra65a@domain.us>
    Subject: FW: Allied International Expenses
    Thread-Topic: Allied International Expenses
    Thread-Index: AQHVaOo29sQazJhKc0SUk69YimSGx6cnA6NggAADVR+AAVvyxv///zvg
    Date: Thu, 12 Sep 2019 12:35:26 -0700
    Message-ID: <fd1d4f75cf40478ba070fe2a6306489e@domain.us>
    References: <51104b528c5346d0a5a9f6c00ee7e05e@domain.us>,<323d391d4ebc4303ba6eaa714afe1aae@domain.us>,<95b96db71e004a8c9a5b0a0551578d65@domain.us>
     <c9757b1a99a04e77ad214b6892218af6@domain.us>
    In-Reply-To: <c9757b1a99a04e77ad214b6892218af6@domain.us>
    Accept-Language: en-US
    Content-Language: en-US
    X-MS-Has-Attach: yes
    X-MS-TNEF-Correlator: <fd1d4f75cf40478ba070fe2a6306489e@domain.us>
    MIME-Version: 1.0
    X-Originating-IP: [192.168.xxx.90]
    Return-Path: Malorie@domain.us

    Thursday, September 12, 2019 8:48 PM

Answers

  • Hi

    Looks like a caching issue in outlook. Was the user removed and re-added again? If you add the x500 to the account they trying to send through do you get the error?


    Hope this helps. Please remember to click “Mark as Answer” on the post that helps you, and to click “Unmark as Answer” if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread.

    • Marked as answer by schema46 Friday, October 4, 2019 6:05 PM
    Friday, September 13, 2019 5:03 AM
    Owner
  • Hi,

    We helped to cover your personal information, please pay attention next time.

    Do you mean only one user in your organization has issues about getting this NDR?

    Maybe the Outlook nickname cache (AutoComplete) contains a bad entry. Please try to reset the nickname and the automatic completion caches in Outlook. File > Options > Mail > Go to Send messages > Empty Auto-Complete List:

    Regards,

    Lydia Zhou


    Please remember to mark the replies as answers if they helped. If you have feedback for TechNet Subscriber Support, contact tnsf@microsoft.com.

    Friday, September 13, 2019 6:50 AM
    Moderator

All replies

  • Hi

    Looks like a caching issue in outlook. Was the user removed and re-added again? If you add the x500 to the account they trying to send through do you get the error?


    Hope this helps. Please remember to click “Mark as Answer” on the post that helps you, and to click “Unmark as Answer” if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread.

    • Marked as answer by schema46 Friday, October 4, 2019 6:05 PM
    Friday, September 13, 2019 5:03 AM
    Owner
  • Hi,

    We helped to cover your personal information, please pay attention next time.

    Do you mean only one user in your organization has issues about getting this NDR?

    Maybe the Outlook nickname cache (AutoComplete) contains a bad entry. Please try to reset the nickname and the automatic completion caches in Outlook. File > Options > Mail > Go to Send messages > Empty Auto-Complete List:

    Regards,

    Lydia Zhou


    Please remember to mark the replies as answers if they helped. If you have feedback for TechNet Subscriber Support, contact tnsf@microsoft.com.

    Friday, September 13, 2019 6:50 AM
    Moderator
  • Hello,

    you have two solutions

    1/ add X500 adresse (from your ndr) into adresse list of each bounced user.

    2/clear auto complete for problematic user (you have to begin to tape the adress, and remove with the cross at right) on each outlook with the problem.

    Olivier.



    Friday, September 13, 2019 7:12 AM
  • Hi,

    Any updates so far?

    Does resetting the automatic completion caches work for you? Please let us know if you need further assistance.

    Regards,

    Lydia Zhou


    Please remember to mark the replies as answers if they helped. If you have feedback for TechNet Subscriber Support, contact tnsf@microsoft.com.

    Wednesday, September 18, 2019 1:15 AM
    Moderator
  • I checked the addresses that keep bouncing.  They are clean.  I deleted them and readded them, but the random bounceback coninues.

    A little more info:

    User has Outlook 2016 with two accounts.   One account is exchange 2012, the other is exchange 2010.

    When a message bounces, it contains the domain where the recipient does not have an address.

    In other words, message sent to user@domain1.com,  bounces back because it was actually sent to user@domain2.us.   This occurs even after the user deleted the recipient from the cache, and manually typed the recipient's address.


    Friday, October 4, 2019 6:34 PM
  • Hi,

    Are these accounts all Exchange account, or POP/IMAP account?

    Does this issue occur with specific sender account?

    Please try to create a new Outlook profile for this user. Let the user test with OWA, and check if the issue persists.

    Regards,

    Lydia Zhou


    Please remember to mark the replies as answers if they helped. If you have feedback for TechNet Subscriber Support, contact tnsf@microsoft.com.

    Wednesday, October 9, 2019 9:08 AM
    Moderator