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Disabling content filtering for some domains

April 19, 2015, 9:32 pm
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Hello,

I need disable the content filtering for some domains on Edge transport server 2013 

For example I want to send encrypted zip files  to contoso.com except any other domains. are there any options to disable filtering lets say for contoso.com only?

Thank you in advance

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Prevent Own Domain Spoofed Spam

September 26, 2014, 6:03 am
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Hi guys!

We got Exchange 2013 in the Internet facing ADsite.

If an externat user use telnet to port 25, we need to prevent that a mail from our own domain can be accepted.

In Exchange 2010, we prevent this removing the ExtendedRights ms-exch-smtp-accept-authoritative-domain-sender on ther Internet connector.

Now in Exchange 2013, we remove this ExtendedRights in the FrontEnd Internet Connector, but the mail is accepted anyway.

Any idea if this behavior change in Exchange 2013?

Regards,

Esteban

http://nextadmin.blogspot.com

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port 25 refusing connections

April 20, 2015, 9:23 am
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Hi

We just set up a new server 2012 standard r2 with exchange 2013, all brand new install and we can telnet to port 25 internally, but not externally.  We have connected the server to 2 different firewalls and experience the same issue so it does not appear to be a firewall issue.  Setting up smtp on port 26 appears to work, however port 25 is being blocked for some reason.  The windows  firewall is disabled.

any ideas would be appreciated.

thanks

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Internal Relay Mail being Received Twice

April 20, 2015, 11:34 am
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We are using our Exchange 2013 SMTP receive connector to relay mail from our fax server to internal users.  Several times a day, our users will receive duplicate or triplicate emails from this service.  Looking at wireshark captures and the SMTP Receive logs, it appears the RightFax successfully sends the data (including the "." at the end) but doesn't receive a " 2.6.0 Mail queued for delivery" message from the Exchange server. It then resets the connection to send the message again. Often, it will receive a successful "mail queued" message the second time, but if not it retries and receives the "mail queued" message the third time.  However, on the recipient end, they receive two/three emails, all with different conversation ID's. 

If we switch the email gateway in the fax application back to our legacy Exchange 2007 environment (which we have not yet decommissioned due to this issue), the issue goes away completely.

So far, the fax application is the only application with email being relayed that we have received complaints about duplicate emails. 

We have tried:
-  Changing the application to point to a different 2013 server that doesn't have as much internal relay traffic
-  Increasing the MaxInboundConnectionsPerSource to 100 and MaxInboundConnectionPercentagePerSource to 100%
-  Increasing the timeout on the application (up to 6 minutes)

Have there been any changes to SMTP response in Exchange 2013 that would cause these issues?


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AD account cannot send as valid email account

March 27, 2015, 12:32 pm
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I'm having trouble sending email (via powershell for now) using an AD account which has been granted Send As permissions to a valid email account.  I am passing the credentials for the AD account and using the FROM address of the email account.  (This is being done from powershell usign smtp.Send.) If I change the credentials to another account it does send, so there's something different about this particular AD account.

When I attempt to send I get "the SMTP server requires a secure connection or the client was not authenticated. The server response was: 5.7.1 client was not authenticated"

In the SMTP receive log I see this:

Inbound Negotiate failed because of LogonDenied  

User Name: NULL

535 5.7.3 Authentication unsuccessful

MAIL FROM:<the-valid-email-account@yyy.com>,

530 5.7.1 Client was not authenticated

What has me perplexed is that I'm doing the same thing from another machine, where I'm using an AD account to send as this same valid email account.  All I did in that case was grant the Send As permission to the AD account and it worked.

In this instance where it's not working I've also tried adding the ms-Exch-SMTP-Submit permission to the receive connector, but still cannot send email.

So I'm stumped as to what is different and needs changed in order to allow this AD account to send mail.

Thanks for any help you can provide.


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OWA Blocked Files - Exchange 2013

April 21, 2015, 9:29 am
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Hi

We are using exchange 2013 with owa access. File types with the extension .snp are blocked.

However the .snp file is allowed when the file is sent from gmail to an owa user.

and...

The .snp file is allowed when the file is sent\received using Light Version of OWA

any thoughts or help appreciated

Thanks

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Relaying an internal PHP application by Exchange 2013

February 17, 2015, 6:47 am
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Hello, dear Fellows,

We use an Exchange2013serverto relaytwoweb applicationsvia a Front-End Transport Receive Connector, properly configured.
All messages sent by the ASP Web Application, are receivedby all the recipient domains.
But somes messages sent by the PHP Web Application are not receivedby some Domains, remaining within the queue, with error messages:
554 5.4.4 SMTP.SEND.DNS.NonExistentDomain;non existent domain
451 4.4.0 Primary Target IP responded with 421 4.7.0 "ServerName" Too many errors "Cannot achieve “Exchange Server authentication”.” Attempted failover to alternate host, but that did not succeed. Either there are no alternate hosts, or delivery failed to all alternate hosts…"

Do you think this is a PHP problem, or an Exchange problem ?
Thanks for your answers

Djamal Belouizdad
Exchange Administrator

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Message size and max recipients per message

April 22, 2015, 12:07 pm
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Hello all

Running Exchange 2013 sp1 RU8. 

On our CAS servers we have configured our front end transport receive connectors with a  "maximum message size limit" of  150 megs, and "maximum recipients per message" with a 500 limit. Based on these numbers,  this mean an external sender can send an email that is 150 megs in size to 500 recipients. 150megs x 500 = 100 gigs. Does  this mean one email has the potential to increase the database size by 100 gigs?

Thank you

Bulls on Parade

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How to put Blue Ribbon indicator (trusted sender) on internal email

April 22, 2015, 5:26 am
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Is it possible to put the blue ribbon icon on internally email?
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Cant send Externally

April 22, 2015, 7:29 pm
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My OS is Server 2012 I have setup and config Exchange Server 2013, problem is I cant send externally. I try to send to my self with admin email address it works fine but when trying to send to my gmail address my message stays on the draft after i refresh it goes to sent items (OWA) but did not receive. any idea with regards to my setup and configuration might be missing or misconfig? Help.
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Replacement for Forefront TMG gateway?

April 22, 2015, 7:02 am
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Hi, as Forefont TMG is discontinued, UAG is too expensive.   Any good replacement at similar cost level?  

thanks

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We have blocked IP, can´t send email to hotmail ...

April 23, 2015, 3:08 am
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Our IP is blocked by Microsoft system. Failier message; 550 SC-001 (SNT004-MC2F11) Unfortunately, messages from 162............ weren't sent.! We need be unblock because we are not spamer!

Sincerely,

Niik.F

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Pipeline Tracing Enabled, Original.EML / Routing.EML / SMTP.EML not show some times.

January 27, 2015, 5:09 pm
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Hi All,

I had enabled Pipeline Tracing on both my Mailbox 2013 (DAG).

Noticed some times the message log in the pipeline trace folder doesn't show all 3 EML files in it.

Under what circumstance Original.EML is not logged, but Routing.EML / SMTP.EML is logged, or vice versa?

Hope someone can help me on this.

Thanks and Regards,

Low

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Redirect Rule - Delivery has failed to these recipients or groups

April 23, 2015, 5:04 am
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First of all my apology if this is wrong Forum. Please guide me to correct forum.

Scenario is that we need to send emails to AD Group using C# code or script.

First we tried C# code and it don't work, as per our finds, log in / password is required. Also, it was taking to much time because of protocol  and we need to send 10 to 15 emails at same time.

We tried script and this time we created a mail box say, temp. We send emails to temp and added rules on bases of subjects of emails.

Now, issue is if we setup forward rule, temp is able to forward email to AD group. If we setup redirect rule, email is not send to AD Group and temp received failure delivery.

Delivery has failed to these recipients or groups:
AD Group Name
Your message can't be delivered because delivery to this address is restricted.
For more information about this issue see DSN code 5.7.1 in Exchange Online.

 We even made temp owner of AD group.

Any help?

http://farhanfaiz.wordpress.com

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Exchange 2013 issue / OWA time-out and WiFi/Cell problem.

October 28, 2014, 12:07 am
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Hi everybody,

I'm having some issues with an Exchange 2013 server.

When some users try to logon to the OWA page it keeps loading the page and ends with a time-out.
This only applies to 6 or 7 users, other users can login and open the page.

I tried to replace the signed certificate to solve this problem, and did a online analyzer check, most tests come out good.

I can't seem to find the source of this problem.

There are also multiple users that are having trouble to receive e-mail through the wifi on phones and tablets at home but when they switch to 3g it works fine.

You might need more information, just ask.. i don't know where to search anymore.

I tried inheritance on the AD, disabled SSL in the IIS, restarted the server, replaced the signed cert. etc.


Update:

I set the selfsigned cert in the IIS default web page,, to check if it responds to the certificate and it does, so the issue doesn't come from the certificate.

This issue probably came up after CU1, and i've read something about healthboxes..

I'm going to install CU6 and hope for good result.

Kind regards,

Tim





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Message in submission queue after hard server reboot

April 23, 2015, 11:56 pm
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Guys,

The server is unresponsive. It was rebooted with message in submission queue.

What will happen to message after reboot? Does it gone or it was delivered?

Thanks!

BR,

Roldan

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Exchange Email Notification

April 24, 2015, 3:07 am
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Hello Team ,

Is it possible to create Exchange 2010  email notification/alert  to the admin
if a user starts sending unusually high amount of emails externally.

Thank you

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Loop in the received mails

April 24, 2015, 4:36 am
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Hello,

When I received a message from the external, I have a "loop" in my mail flow. I have not a problem with the receiving but it is strange.

My headers are the follow :

Received: from exchsrv.domain.com (192.168.1.x) by exchsrv.domain.com
 (192.168.1.x) with Microsoft SMTP Server (TLS) id 15.0.1044.25 via Mailbox
 Transport; Fri, 24 Apr 2015 13:05:07 +0200
Received: from exchsrv.domain.com (192.168.1.x) by EXCHSRV.domain.com
 (192.168.1.x) with Microsoft SMTP Server (TLS) id 15.0.1044.25; Fri, 24 Apr
 2015 13:05:07 +0200
Received: from antispam (192.168.1.x) by exchsrv.domain.com (192.168.1.x) with
 Microsoft SMTP Server id 15.0.1044.25 via Frontend Transport; Fri, 24 Apr
 2015 13:05:07 +0200

Note the uppercase in the second receive.

I do not really understand when the problem could be.

Thanks

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No Internet Mail Group Exchange 2013

April 24, 2015, 4:46 am
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Hello, 

I'm trying to restrict a group of users outside mail access and only allow internal mail communication within our organization. In the management console for Exchange 2007 and 2010 it was pretty straight forward creating transport rules. How ever through the Exchange Admin Center in Exchange 2013 I seem to be having more difficulty. 

I logged into EAC, from recipients, i went to the groups page and created a new security group, and then went into its properties. Under properties I click on delivery management and have "Only senders inside my organization" selected. I was under the impression this would stop email from the outside coming in, but I was incorrect because I can still send mail from my gmail or yahoo account to useres I put in this group.

Stop users from sending outside email, I haven't even attempted since conditions and actions in the transport rules seems to have changed and I can't seem to find the correct action to do what I want.

Anyone have success doing the above with outlook 2013 and EAC? I'm not opposed to doing this via powershell either if needed. 

Thank you!
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How to increase White List entries from maximum allowed 100 entries in Content Filter Agent for Exchange 2013?

April 24, 2015, 7:15 am
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I am migrating Notes to Exchange 2013. In Notes we have 600 White List entries and I would like to configure the same in Exchange 2013. But the maximum number of allowed White List entries in Exchange 2013 are only 100. Please see below on page 367.

https://books.google.ca/books?id=hqAO41VbYqQC&pg=PA367&lpg=PA367&dq=maximum+number+of+white+listing+entries+allowed+in+exchange+2013&source=bl&ots=TMf_MetLTj&sig=671IjSq2yim4O9S9HJrHJqNY3RQ&hl=en&sa=X&ei=eUg6VeetIc7ZsATE3ICACw#v=onepage&q=maximum%20number%20of%20white%20listing%20entries%20allowed%20in%20exchange%202013&f=false

Is there any way to increase this limit?

Thanks

 -Liaqat

Liaqat

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