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Your message can't be delivered because you do not have permissions to send to this email address.

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Dear All , 

I would to change this DSN message but I tried but cannot fix so that I would request to help in this regards.

"Your message can't be delivered because you do not have permissions to send to this email address. Ask the recipient’s e-mail administrator to grant you permissions and then try again. For more information about this issue see DSN code 5.7.1 in Exchange Online.

Thanks 


SPF,DMARC,DKIM Implementation

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Hello All,

Need some help.

We have an O365 Hybrid deployment with MX record pointed to EOP and centralised mail flow disabled. There are 2 Exchange 2013 Hybrid servers at on-premise with CAS+MBX roles installed. Autodiscover records are pointed to this Hybrid servers for client connections.

We also have a Internal SMTP server placed in DMZ used by scanners and line of business applications relying the message to one of the hybrid server.

We already have an SPF record with public IP of the SMTP server but I guess this is the wrong configuration. We are experiencing lot of Phishing/Spam emails.

Can someone please help on how the SPF, DMARC, DKIM records must look like for implementing a secure and safe email filtering? This must not filter the original messages.

messages stuck in draft and 2 services are not starting

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Hi all

After a full VM restore job with "veeam" for exchange  server 2013, messages stuck in draft and 2 services are not starting.

The services are "mailbox Transport Submission" & "Mailbox Transport Delivery" that they stuck in "starting" mode.

Anyone can help?

thanks.

Autodiscover DNS records for multiple domain names

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Hello,

I have one multi tenant server. Right now it is configured with self-signed certificate. I would like to move to a normal certificate. There are 5 domain names.

I read somewhere some time ago that I could use one certificate and a domain for all domains.

Could anybody point me to the right direction how to configure autodiscover DNS records for all other domains to point to a single domain so I could use the same certificate on all domains?

Exchange photos blocked from being included in external emails

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I'm looking to see if there is an option to exclude Exchange employee photos from being included when sending to outside our domain?

We have a security element and we want to utilize employee photos in Outlook, however due to the security of our business, we would not want their photos to be included in any external emails.

Thanks!!

Exchange 2013 having outlook issues

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We have Exchange 2013. Below are the versions.

Version 15.0 ‎(Build 847.32)‎
Version 15.0 ‎(Build 775.38)‎

Both are mailbox,cas servers

We face outlook disconnection issues.

below are some event IDs

2200

2136

15021

1021

106

We see CPU use high, so increased the processor and also memory and now that is normal. Still we have the issue.

Outlook shows status as disconnected. Somtimes it get connected but still goes disconnected. restarted the servers multiple times.

OWA is working fine.

Below are some screenshots.

The above when tried to modify the front end connector max input value. AD is reachable, restarted also. Same issue exists.


This issue is with one of the outlook clients. Restarted the client multiple times.

The above when trying to open EMS on one of the servers. Restarted, same issue.

Kindly let me know how to resolve this. Please move to necessary forum if this is not the correct forum.

Emails going through passive mailbox servers

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Dear Experts,

Scenario : We have 2 sites A & B where Site A was holding active copies and site B passive copies of mailbox server. Now we have switched to as B as primary (holding active copies). CAS servers were Hyper-V replicated from Site A to Site B.

After swithover, we can still see emails are getting delivered from CAS Servers --> Site A mailbox server --> Site B mailbox server. This creates a dependency on Site A.  Please let me know why emails getting routing from Site A mailbox servers ? The emails should directly be routed from CAS to Site B ? What should I do to remove the dependency so that CAS directly hand over the emails to Site B

Troubleshooting Done :

1. Change the DNS of CAS servers as Site B as primary and Site A as secondary.

2. Changed the activation preferences.

Still no luck. Please guide.


Exchange 2013 having outlook issues

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We have Exchange 2013. Below are the versions.

Version 15.0 ‎(Build 847.32)‎
Version 15.0 ‎(Build 775.38)‎

Both are mailbox,cas servers

We face outlook disconnection issues.

below are some event IDs

2200

2136

15021

1021

106

We see CPU use high, so increased the processor and also memory and now that is normal. Still we have the issue.

Outlook shows status as disconnected. Somtimes it get connected but still goes disconnected. restarted the servers multiple times.

OWA is working fine.

Below are some screenshots.

The above when tried to modify the front end connector max input value. AD is reachable, restarted also. Same issue exists.


This issue is with one of the outlook clients. Restarted the client multiple times.

The above when trying to open EMS on one of the servers. Restarted, same issue.

Kindly let me know how to resolve this. Please move to necessary forum if this is not the correct forum.


450 4.5.0 no recipient succeeded from Exchange Online to Exchange 2013 on-prem

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Exchange Online Sender receives this bounce-back: "Remote server returned '450 4.5.0 no recipient succeeded'

I can't find much information about this NDR.

I'm (Exchange 2013 on-prem) on the receiving end (sent from Exchange Online) of the issue. The error points to me, but I do not see the email in question passing through our edge firewall. The originating server and mailbox and many other mailboxes can send mail to (as far as I can tell in the hub/frontend protocol/edge firewall, set verbose, logs and test messages) all my other mailboxes.

It only affects mail flow from one mailbox on Exchange Online to one mailbox on my system and started around 1/12/19.

https://testconnectivity.microsoft.com

  • Passed Inbound/Outbound SMTP for a variety of users.
  • DNS tests passed.

Receiving mailbox in question.

  • Get-MailboxRepairRequest passed.
  • Not hitting quota.

I'm having the sending user try multiple clients (OWA/Outlook/Phone) to see if it is happening to one or all.

Setting a "disclaimer" for a retired user in Exchange 2013?

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We recently had a high profile user retire and we quickly hired a replacement.

I want to keep the mail flowing to the new employee and create a disclaimer stating the retired user is no longer with the company. Step 1 was simple but creating a new disclaimer has me a little confused.

After configuring a disclaimer in the ECP for that user (mail flow>rules>"+">Apply disclaimers) it doesn't work.

The user is disabled in Active Directory.




Accidentally marked UPS message as spam - now forever ending up in "Spambox"

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How do I stop emails from ending up in the "Spambox" folder.

I accidentally marked a UPS notification as spam, and now it seems to be forever ending up in the "Spambox" folder. I added ups to my safe senders list but it is not helping.

When I move the messages from spambox to my inbox they end up back in Spambox within seconds.

I am also not able to mark these emails as "Not junk".

What do I do? HELP!

Exchange server and DKIM

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i need to implement a supported DKIM solution that integrates with exchange 20106



i know there is the below tool:

https://www.emailarchitect.net/domainkeys/kb/dkim_exchange_2007_2010_2013.aspx#install-dkim-in-exchange-server-2007-2010-2013-2016



but is it supported by Microsoft?

S/MIME configuration for Microsoft Outlook on the web OWA

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Hello

I have a platform based on Windows servers,

I have an Exchange 2013 mail server with an OWA web access application.

I need to enable electronic signature of emails by accessing through OWA.

the certification authority that will be used is on another server under windows as well

I have set the S/MIME settings as follows:

Set-SmimeConfig -OWAAllowUserChoiceOfSigningCertificate $true
Set-SmimeConfig -OWAAlwaysSign $true
Set-SmimeConfig -OWACheckCRLOnSend $true
Set-SmimeConfig -OWAClearSign $true
Set-SmimeConfig -OWACRLConnectionTimeout 60000
Set-SmimeConfig -OWACRLRetrievalTimeout 10000
Set-SmimeConfig -OWADisableCRLCheck $true
Set-SmimeConfig -OWAForceSMIMEClientUpgrade $true
Set-SmimeConfig -OWAIncludeCertificateChainAndRootCertificate $true
Set-SmimeConfig -OWASenderCertificateAttributesToDisplay *********
Set-SmimeConfig –OWASigningAlgorithms 800C
Set-SmimeConfig -SMIMECertificateIssuingCA $([byte[]](Get-Content -Encoding byte -Path "C:\certs\issuer&root.sst" -ReadCount 0)

the file issuer&root.sst was imported from the CA

I have installed owasmime.msi for Internet explorer

but unfortunatly it doesn't give me the ability to sign

both fields: 
encrypt this message
and 
digitally sign this message
are in grey

in parameters I have set to choice automatically the certificate

How could I find solution for the problem? please

Thank you

Transport Rule Exceptions list not working fully

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Hello

I am wanting to use a transport rule to help our users identify email originating from outside of the domain. In this rule I have prepended the Subject line with "External" and also prepended the message with a Banner. As we have several trusted sources which send email to our users I have added a list of Exceptions using "Except when the From address contains". Within this list of exceptions are multiple List Serve addresses, these address continue to get the external tags despite being listed as exceptions. We have several Lists, each of which are added as Mail Contacts on ourExchange 2010 environment.

I am hoping you all can help me identify where I went wrong, and help me resolve this issue. At this point this banner is in a testing phase and is expected to roll out to the rest of the domain once this issue is resolved.

Current Exceptions: 

 Except if the message:
     Is received from 'Inside the organization'
     or Includes these words in the message subject: '[External]  '
     or Includes these words in the sender's address: 

Any suggestions are appreciated


NDR - When External Recipients sends mails to a DG.

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Hi,

We have some DGs which only allows to send mails "Only Senders inside my organization". But when external recipients sends mails to this group, they don't receive a NDR. We need to get a NDR when external recipients sends mails to these DGs.

 Please advise.

Regards,

Kavindu


Exchange 2003 and Hybrid Configuration Wizard

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Hi guys,

I was looking at an old Exchange 2003 hybrid server today and there was a bunch of connectors to anti-spam appliances and so forth, a real mess.

My questions is if we want the flow to go as "recommended" we would en up in having:

- Incoming email via EOP first and if the mailbox is not hosted online it will be routed down to the on-prem Exchange?

- Outbound mail will go from on-prem (if sender is located there) to Exchange Online and out via EOP?

How many "hybrid - connectors" are there in a typical environment with only one exchange server, apart from the regular receiving connectors?

- Exchange On-prem send-connector to Exchange Online

- Exchange On-prem receive connector from Exchange Online

- Exchagne Online sendconnector to Exchange On-prem?

- Exchabne Online receive connector from Exchange On-prem?

- and to the internet itself? :)

If we remove all connectors related to the hybrid setup and re-run the Hybrid Configuration Wizard it will create the connectors for me? Or if we dont remove the current ones, will they be disabled/turned off while the wizard creates the new ones and enables them??

mx.google.com rejected your message

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Hi,

Good day, Please I've been trying to send email to gmail from my domain(****)but i i keep getting #ERROR! 

Exchnage serevr 2013

Symantec Anti spam

mx.google.com rejected your message to the following email addresses:

abcdfg (abcdfg@gmail.com)
mx.google.com gave this error:
This message does not have authentication information or fails to pass authentication checks. To best protect our users from spam, the message has been blocked. Please visit https://support.google.com/mail/answer/81126#authentication for more information. x74si5869187pfe.23 - gsmtp 
Your message wasn't delivered due to a permission or security issue. It may have been rejected by a moderator, the address may only accept email from certain senders, or another restriction may be preventing delivery.
Diagnostic information for administrators:
Generating server: abcdfgh.ABSCDF.COM
abcdfg@gmail.com
mx.google.com
Remote Server returned '550-5.7.1 This message does not have authentication information or fails to pass 550-5.7.1 authentication checks. To best protect our users from spam, the 550-5.7.1 message has been blocked. Please visit 550-5.7.1 https://support.google.com/mail/answer/81126#authentication for more 550 5.7.1 information. x74si5869187pfe.23 - gsmtp'



NDR - When External Recipients sends mails to a DG.

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Hi,

We have some DGs which only allows to send mails "Only Senders inside my organization". But when external recipients sends mails to this group, they don't receive a NDR. We need to get a NDR when external recipients sends mails to these DGs.

 Please advise.

Regards,

Kavindu

Vulnerability - SSL Connection: SSLv3 CBC Mode Cipher POODLE Vulnerability(443/TCP) External

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Hi All,

we have our exchange webmail hosted externally. recently we have got this message from our vendor say, we are under the risk factor(Vulnerability - SSL Connection: SSLv3 CBC Mode Cipher POODLE Vulnerability(443/TCP)). This is from the external test.

For More details Error : This server supports SSLv3 with CBC mode ciphers. The server's highest supported protocol: TLSv1.2, Server allows a client to connect with the lower protocol: TLSv1.1

Please let us know, how to resolve this issue. And let me know to set to resolve this.

We have Exchange 2013 server, which is on Windows 2012 R2


Thanks

Delivery report shows status of Pending for external address. Email sent to both internal and external addresses.

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In Exchange Admin Center

When an email is being sent to both internal and external recipients the message tracking shows submitted and Pending, both internal and external recipient receive the email.

My concern is why the status is pending but the email is successfully receive by therecipient?

Thanks,

Joh 


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