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disable duplicate detection

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Hi everybody,

I know duplicate message detection is a nice feature at all.

I have one requirement (some kind of archiving) in which this is really not wanted.

I've seen that it might be possible to disable this at all by setting the following key to 0:

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\MSExchangeIS\<Server
 Name>\<Private/Public-Guid>\Track Duplicates (in hours)

As I don't want to disable duplicate detection at all but only for only recipient mailbox I didn't go into that direction.

Does anybody knows if it is possible to disable this on per user / per mailbox basis?

Thanks a lot,

Matthias


Exchange 2013 Send/Receive Limits

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Hi all,

Back in April, we upgraded to Exchange 2013 and quickly found out that we cannot receive e-mails large than 10MB. I have looked in every place I can think of and have set all limits to either unlimited or 40MB.

Am I missing something obvious?

Thanks
Tom

Exchange Send Connector with ISP failover

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I'm in the process of migrating exchange 2010 to 2013 and since now we have a backup ISP I was wondering if ISP1 goes down and the server starts sending using ISP2 which is a different public IP if I have FQDN exch1.contoso.com with ISP1 and the servers which receive emails from my server do revers DNS check on the second IP will see it doesn't correspond to exch1.contoso.com and will treat it as spam in most cases. Do I need to ask my ISP to add a PTR record with the same name for the IP used by my backup ISP?

Exchange 2013 recipient and sender limits

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I have locally installed an exchange server 2013 and have come across a problem that I need some advice on how to resolve if possible.  We need to regularly send out emails to a membership with over 1500 contacts and have found that we can only send out 5 emails at a time and need to wait 30 seconds before sending out another 5 emails. The email attachments are on 30K in size so I'm not sure if this assists in understanding the problem.  I have been searching and found lots of articles relating to 365 and the limits set on recipients and sender limits and need to know if that affects the standard 2013 release as well.  Given that its a local install can I change these limits to allow the mail to flow as it used to in the older versions and if so how?  Any advice would be appreciated? 

Allan


AllanH

Adding SMTP Relay IP Addresses and Networks on Exchange 2010

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Hello All,

I am new to Exchange 2010, and have a few questions.  I successfully migrated all users' E2003 mailboxes to E2010.

I want to start moving all the dependencies over from E2003 to E2010 such as SMTP relay.  We are using a 3rd party external spam filtering service to relay good\safe email to our Exchange server.

As everyone knows, in E2003, we can add trusted IP Hosts\Networks via the SMTP VS connector.  But in E2010, it does not use the IIS-SMTP service to make this happen.  It uses the "ReceiveConnector" and "SendConnector".  Given that our 3rd part spam service sends up a list of IP Hosts\Networks for relaying, is it safe to assume the following per the MS instructions:

1.  Add an additional IP address to the E2010 server (Is this as simple as adding another IP on the LAN interface?)

2. How do you specify "networks" for the "-RemoteIPRanges" parameter?  Would I do the following:

New-ReceiveConnector -Name RelayConnector -usage Custom -Bindings ’Additonal-IP-For-E2010:25′ -fqdn e2010.company.com -RemoteIPRanges 192.168.1.100 255.255.255.0 -serverex2010 -permissiongroups AnonymousUsers

Get-ReceiveConnector RelayConnector | Add-ADPermission -User “NT AUTHORITY\ANONYMOUS LOGON” -ExtendedRights “ms-Exch-SMTP-Accept-Any-Recipient”

3.  Is #2 is true, and I have let's say 12 networks to add as SMTP Relay networks, do I have to execute the above commands 12 times?

4.  This is probably off topic but is there any documentation that has instructions on how to remove an E2003 server from the Organization to only have the E2010 server?

Any help would fantastic!

Thanks guys!

 

Exchange Not Receiving Email From Outside Domains Only Within

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I created a system state backup before I edited anything. I removed a legacy Exchange 2003 because I needed to create an Email Address Policy in our Exchange 2010. I deleted remnants from exch 03 on ADSI, but now domainA can only receive email from its own domain, and not from a second domain in the same organization, different subnet, or outside (gmail, etc).

Seems like email was being routed through exchange 2003. That server is still online since it has dc, dhcp, dns. It was configured this way before my time.

I restored the system state back but it didn't bring the ADSI configuration back before deleting exch 2003 remnants. I did take a snapshot and did an outline before deleting, and tried building it back but no use.

Any suggestions?

 

Exchange 2013 SmartHost Can't Send Mail Outbound

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Hello

My Setup

Server01: Server 2012 Standard + Exchange 2013 Standard (MBX+CAS)

Server02: Server 2012 Standard + Exchange 2013 Standard (MBX+CAS)

No DAG Yet!

I have created a Send Connector(Smart Host) but when I try to send mail from Outlook 2013 It will be in the Send Folder, but when I take a look in the Queue Viewer it shows up there with Status Ready and Queue ID 39, What can be the problem?

port 25 Outbound is opened in the Firewall so I really don't get what the problem can be.

Hope someone can help me and give some Professional tips on this.

Thank You and have a nice day

some mails delivered before 2 days from today

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Hi ,

 

i am facing issue of some mails which are delivered before 2 days from today i.e mail received from x person on 13-Aug-13 (today) mail contains date is 15-Aug-13 .

this issue is not related to my laptop date/time as other mails are delivered correctly.

OS : windows 8

Outlook client 2013

Exchange 2010

can you please help me to resolve this issue.


Exchange 2013 Recieve Connectors - Same port different RemoteIPRanges conflicts.

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Trying to setup a receive connector to relay mail that would have a more restricted RemoteIPRange.  According to Technet, you can have multiple recieve connectors on the same IP/Port combination as long as the RemoteIPRange overlap, the most restrictive will be used.

So I setup a receive connector restricted to 2 server IPs but on the same port (25) as the Default FrontEnd Connector (single server environment).   The 2 servers would work fine and connect to the new Send Connector.   However, the Default Frontend EXCH01 would stop recieving traffic, which has a IP range of 0.0.0.0   Any connections from other servers would get the following message on connecting:  421 4.3.2 Service not available.    So for the time being, I've moved the receive connector to  for relaying to port 26 and everything is working.    

Is there something in the configuration of a receive connector that I'm missing.  I know i've done this on Exchange 2010 without issue.

Send via Email Alias

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We have a few groups (HR and Legal) that provide services for a few different companies.  I would like the groups to be able to send/receive messages from multiple email domains, but I would like to avoid each user having multiple Mailboxes on the system (each with multiple calendars, contact lists, GAL entries, etc)

It is so easy to add additional inbound alias, but I for the life of me cannot find a good solution for sending Outbound via an alias. 

Does anyone have any suggestions for how they've done something similar in their own org?

We're running Exchange 2010 and Outlook 2013.

Advice please- How did this end up in my Exchange 2013 mailbox

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I received an email in my mailbox today which has given me some concern.  The email has the following header -

Received: from EXCHANGE2.local.xxxxxxxxxx.co.uk (192.168.0.72) by
 EXCHANGE2.local.xxxxxxxxx.co.uk (192.168.0.72) with Microsoft SMTP Server
 (TLS) id 15.0.712.22 via Mailbox Transport; Wed, 21 Aug 2013 14:42:09 +0100
Received: from EXCHANGE2.local.xxxxxxxx.co.uk (192.168.0.72) by
 EXCHANGE2.local.xxxxxxxxxx.co.uk (192.168.0.72) with Microsoft SMTP Server
 (TLS) id 15.0.712.22; Wed, 21 Aug 2013 14:41:33 +0100
Received: from 10ibl21ser04.datacenter.cha.cantv.net (200.11.173.10) by
 EXCHANGE2.local.xxxxxxxxxx.co.uk (192.168.0.72) with Microsoft SMTP Server
 id 15.0.712.22 via Frontend Transport; Wed, 21 Aug 2013 14:41:32 +0100
X-Virus-Scanned: amavisd-new at cantv.net
Received: from webmail-06.datacenter.cha.cantv.net
 (webmail-06.datacenter.cha.cantv.net [200.11.153.89]) (authenticated bits=0)
 by 10ibl21ser04.datacenter.cha.cantv.net (8.14.3/8.14.3/3.0) with ESMTP id
 r7LDenkD016671; Wed, 21 Aug 2013 09:10:49 -0430
X-Matched-Lists: []
Received: from 81.91.229.189 ([81.91.229.189]) by
 webmail-06.datacenter.cha.cantv.net (Cantv Webmail) with HTTP; Wed, 21 Aug
 2013 09:10:49 -0430 (VET)
Date: Wed, 21 Aug 2013 09:10:49 -0430
From: okakaoffice <okakaoffice@cantv.net>
Reply-To: <dhl-expressdeliverycourier56788cmpny@56788.com>
To: <family@mpdeegan.wanadoo.co.u>
Message-ID: <2099142773.5215096.1377092449211.JavaMail.gess@webmail-06.datacenter.cha.cantv.net>
Subject: CONTACT MR. HARRY MORRIS FOR YOUR ATM CARD OF 2.5USD
MIME-Version: 1.0
Content-Type: text/html; charset="UTF-8"
Content-Transfer-Encoding: quoted-printable
X-Mailer: Cantv Webmail
X-Originating-IP: [81.91.229.189]
Return-Path: okakaoffice@cantv.net
X-MS-Exchange-Organization-PRD: cantv.net
X-MS-Exchange-Organization-SenderIdResult: Pass
Received-SPF: Pass (EXCHANGE2.local.xxxxxxxxxxx.co.uk: domain of
 okakaoffice@cantv.net designates 200.11.173.10 as permitted sender)
 receiver=EXCHANGE2.local.xxxxxxxxx.co.uk; client-ip=200.11.173.10;
 helo=10ibl21ser04.datacenter.cha.cantv.net;
X-MS-Exchange-Organization-Network-Message-Id: 095595f4-456c-4202-8988-08d06c8b48c8
X-MS-Exchange-Organization-SCL: 6
X-MS-Exchange-Organization-PCL: 2
X-MS-Exchange-Organization-Antispam-Report: DV:3.3.5705.600;SID:SenderIDStatus Pass;OrigIP:200.11.173.10
X-MS-Exchange-Organization-AVStamp-Enterprise: 1.0
X-MS-Exchange-Organization-AuthSource: EXCHANGE2.local.xxxxxxxxxxx.co.uk
X-MS-Exchange-Organization-AuthAs: Anonymous

The message tracking log does indicate that my mail box was the one the message was targeted at.  However how does the header say otherwise?

EventId  Source   Sender                            Recipients                        MessageSubject
-------  ------   ------                            ----------                        --------------
HARED... SMTP     okakaoffice@cantv.net            {me@xxxxxxxxxx... CONTACT MR. HARRY MORRIS FOR Y...
RECEIVE  SMTP     okakaoffice@cantv.net            {me@xxxxxxxxxx... CONTACT MR. HARRY MORRIS FOR Y...
AGENT... AGENT    okakaoffice@cantv.net            {me@xxxxxxxxxx... CONTACT MR. HARRY MORRIS FOR Y...
SEND     SMTP     okakaoffice@cantv.net            {me@xxxxxxxxxx... CONTACT MR. HARRY MORRIS FOR Y...
DELIVER  STORE... okakaoffice@cantv.net            {me@xxxxxxxxx... CONTACT MR. HARRY MORRIS FOR Y...

Exchange has been configured to reject email if the receiving mailbox does not exist.  In this instanceme@xxxxxxxxxx does exist but how come the header indicates otherwise.  family@mpdeegan.wanadoo.co.u does not exist on my server!

Further concerned because the SPF got a pass.  How did the spammer do this and have I got something to worry about?

Many thanks in anticipation of your replies.




Exchange 2013 does not permit sending messages to addresses with ".@" substring

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I have Exchange 2013 CU2. Recently, one of our users received an e-mail message with sender's addressuser_a.b.@domain.com. It was impossible to reply to that address because Exchange refused to accept it:

----- The following addresses had permanent fatal errors ----- <ADDRESS> (reason: 501 5.1.3 Invalid address)

It was possible to send the message if the second dot was removed (i.e. no more ".@" combination). Of course, it could not be delivered anyways (no such mailbox).

I've conducted some experiments and found that both my mail server running Sendmail and Google mail system accept that address and deliver messages to it.

Why does Exchange behave in such a way?

anonymous senders on default recieve connector

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Hi there,

I am struggling with understanding security implication of the anonymous permission on the default receive connector. I am looking for a steer in the right direction:)

I have exchange 2010 SP3 stand alone server with hub transport behind a firewall (no edge). We do have a 3rd party service (spam filter) that relays clean emails to our exchange server.

Currently i have a default setup receive connector that is configured to receive emails for any IP and a rule in the firewall to relay traffic on port 25 to the exchange server.

Recently i came to realization that all of my internal devices such as multi functional printers, UPS, NAS, etc are able to send notification emails to me without any authentication involved. That would mean, if say a virus hit any of my client computers, it would have a green light to spam everyone internally or externally without much effort!

Is this correct?

Obviously, if i uncheck anonymous permission in default receive connector, my server won't be able to receive anything at all.

Are there any best practices to secure this flaw? limit which anonymous INTERNAL devices can use my exchange as a relay? how about External anonymous clients, is it a concern?

Emails not forwarding

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I have recently been trying to forward email from an internal account to a different internal account with no success. I have a very simple, single server Exchange 2010 setup, recently migrated from 2003 and with 2003 still up and part of the organization. The mailboxes in question are all on the 2010 box. I used the Mail Flow Settings >>> Delivery Options to check the Forward to: box and browse for the recipient. I tried two different addresses, but no luck. I restarted the Information Store and Transport service thinking that might be the issue, but no luck. What could be the issue?

The user whose email I am forwarding is in one child domain and I am forwarding the email to a user in another child domain, of course with two-way trusts, etc... I can't find any error messages or anything. It just doesn't work. Any ideas?

Exchange 2010 SMTP Relay - 2nd internal domain name - HELP!!!

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Hi,

Hoping someone can help me with a little issue I have please?

Our Exchange admin has left the firm and I have picked this up with very little experience of Exchange.

In short we have moved our internal SMTP relay from 2003 to 2010 and come up against some issues, all of which I have overcome bar one, our Finance team send various emails from their billing system to users and themselves in various ways, Anonymous, sending as an internal user to the same internal user but relaying with an admin account etc etc.

They also send emails to internal users as a completely different made up but relavant name to the actual firms domain, for example, our internal domain is company.com and all in internal users SMTP address is company.com, however they need their finance system to relay to users as an address from finance.com, this isn't a mailbox it's just a name their system uses and sends via our internal smtp relay/receive connectors.

I have setup a new internal receive connector that applies to only their finance subnet allowing anonymous, however I'm at a loss as to how to allow the finance.com domain to relay to our internal users, I'm assuming I need to create an authoritative domain or similar but do not just want to go playing around on a live environment.

Any help would be greatly received.

Many Thanks

Steve





Email Communication between Exchange 2007 and 2013

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Hi ,

for email communication between Ex2003 ---> Ex2007 / 2010 is through  interop routing group connector .

My question is how email communicate between Ex2007 ----> 2010-- 2013 or vice versa

Error to send to gmail.com

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Friends, I have an Exchange 2013 and a sudden he no longer send emails to gmail.com

Googled the error but not its resolving, see:

mx.google.com rejected your message to these email addresses:

mx.google.com generated this error: [2002:3207:4784 :: 3207:4784 16] The sender does not meet basic guidelines ipv6 sending of authentication and RDNs resolution of sending ip. Please review https://support.google.com/mail/answer/81126for more information. e49si9606932eep.111 - gsmtp
Your message was not delivered due to permission problems or safety. She may have been rejected by a moderator, the address only accepts mail from certain senders, or another restriction prevented delivery.


Can you help me?

Silvio Tavares - Analista de Sistemas

mail.protection.outlook.com Delisting

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We moved to another location and got a new ip from ISP and our exchange server is not able to send emails to some recipients getting .mail.protection.outlook.com error.

user@domain.com
BN1AFFO11FD036.mail.protection.outlook.com #550 5.7.1 Service unavailable; Client host [72.76.xxx.xx] blocked using Blocklist 1; To request removal from this list please forward this message todelist@messaging.microsoft.com ##

This is the error I am getting and I did email to delist@messaging.microsoft.com and I am wondering when will my IP get unblocked as this is causing a lot of communication issues. I checked my ip for blacklist but its not in any database. Hope I'll be able to find some solution soon on this.


 

Exchange 2013 Spam/AV Options

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In a new Exchange 2013 deployment I am trying to understand my options for Spam/AV Filtering for email.  I have read that there is a feature on the Exchange 2013 Mailbox server role that will catch spam. I also read that Microsoft offers a cloud based spam filtering/av scanner service for purchase. Exchange 2010 Edge Transport server appears to be an option yet too. I also know there are many 3rd party tools that can be utilized as well.

Are my research results for my options above correct? Are there any other options I am missing.

How good of a spam filter tool comes with the Exchange 2013 mailbox role?


Exhange 2013 External Inbound Mail routing options

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I am planning a migration from a Lotus Notes to Exchange 2013 environment that is site resilient. I understand that there will be a migration period and that the mail routing design will look different during that time of the migration. I have been researching the architecture of Exchange 2013 and I feel I have a pretty good understanding of most features in the CAS and DAG roles but it is really unclear how inbound/outbound external mail routing is configured. In previous versions many people used the Edge Transport server and I can still use the Exchange 2010 Edge Transport server in 2013 as one option. I am also finding information that I can setup send and recieve connectors on the Exchange 2013 CAS servers to do this task too. Below are my questions about this topic.

  1. Am I right that Exchange 2013 CAS or Exchange 2010 Edge Transport are options for this service?
  2. Are there other option for Inbound/Outbound External mail routing with Exchange 2013? Third party or otherwise?
  3. Of all my options what are the pros/cons to using each one.
  4. I have heard rumors of an Exchange 2013 Edge Transport service that is planned for future release? Are there any details on what this will feature, when it will be released, or how it will work?
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