Exchange 2010 - Cannot receive external emails, only internal.

Hello, this is my first time setting up Exchange 2010, I have set up exchange 2010 on Windows Server 2008 R2, I can receive internal emails but every time I send out an external email I get a bounce back. I have a domain controller on a separate VM I have
my exchange on, I have tried going through different courses of action but no success.
Any help would be much appreciated

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Similar Messages

Exchange 2010: New Mailboxes cannot receive external email, but internal works fine. Existing Mailboxes are working properly.

Hello,
I can't seem to figure out what the problem is, but my new mailboxes cannot receive external email. The sender receives an NDR stating the following:
The error that the other server returned was: 550 550 No such user - psmtp (state 13).
Internally, the affected mailboxes can send and receive mail, and the mailboxes have no trouble sending mail out of the organization. I do not see an anti-spam solution installed on the exchange server, and I have confirmed that DNS resolved to the WAN IP
of this server.
Can anyone help me? The message tracker didn't appear to have recorded the NDR's that it sent, but it's possible I didn't view the logs correctly.
Thank you!
Paul
My environment contains two servers:
Server A: Domain Controller, Server 2008 R2, Exchange 2010 Standard
Server B: Domain Controller, Server 2008 R2

On Wed, 30 May 2012 02:01:19 +0000, Relion Support Inc wrote:
>
>
>Hello,
>
>
>
>I can't seem to figure out what the problem is, but my new mailboxes cannot receive external email. The sender receives an NDR stating the following:
>
>The error that the other server returned was: 550 550 No such user - psmtp (state 13).
>
>
>
>Internally, the affected mailboxes can send and receive mail, and the mailboxes have no trouble sending mail out of the organization. I do not see an anti-spam solution installed on the exchange server, and I have confirmed that DNS resolved to the WAN
IP of this server.
>
>
>
>Can anyone help me? The message tracker didn't appear to have recorded the NDR's that it sent, but it's possible I didn't view the logs correctly.
Is your Exchange server exposed to the Internet or do you have some
3rd-party device that does spam filtering? If you have something out
in front of Exchange that only periodically refreshes its cache of
valid SMTP addresses from the AD then you need to adjust the refresh
rate.
That "550 No such user" isn't a status code that Exchange returned.
Rich Matheisen
MCSE+I, Exchange MVP
--- Rich Matheisen MCSE+I, Exchange MVP

One Exchange Mailbox not receiving external email

DustinB3403 wrote:Do you have a split environment with AD onsite and Exchange hosted (It looks as though you do).I would check his AD account and see if a proper email "[email protected]" exists in the Email Address field.If it doesn't or is like "[email protected]" delete the account and recreate it.All email is on premise. He has the proper email address setup. We have 3 domains running through our exchange server, and when I set him an alias with another one of the domains, mail seems to flow properly, but only to the alias.
Viper One wrote:If it's a new user I'd just go ahead and removed the records and just recreate the account from scratch
I think I'm going to try this. Ill let everyone know how it goes.

Viper One wrote:You had a look on the Tracking Logs ???Check if you can see anything coming to that email address and what is happening with those emails.Im checking the tracking logs now. We can send email to the user internally without problems.
DustinB3403 wrote:Have you checked the settings on the account to be able to receive external email.Check herehttp://www.cryer.co.uk/brian/msexchange/exch_howto_disable_delivery.htmThere is an option on the user account to select who can send emails to this account that is likely the cause of your issues.I have checked this...
Looks good to me.
Ive set this account up just like all the others.

Cannot receive external emails

I have one account on Exchange Server 2013 that only receives internal mail, external mail gets rejected with the following error:
Reporting-MTA: dns;DUB004-OMC1S11.hotmail.com
Received-From-MTA: dns;DUB110-W4
Arrival-Date: Fri, 27 Mar 2015 02:22:32 -0700
Final-Recipient: rfc822;<email>@<Domain>.co.uk
Action: failed
Status: 5.7.1
Diagnostic-Code: smtp;550 5.7.1 Recipient rejected (R4)
The email account appears to have the same settings as the email accounts that accept both internal and external email.

Hello,
Good Day...
Request you to please follow the below steps
5.7.1
A very common Exchange 2010 NDR, the cause is a permissions problem. For some reason the sender is not allowed to email this account.
Perhaps an anonymous user is trying to send mail to a distribution list.
Alternatively, a user may have a manually created email address that does not match a System Policy.
Check SMTP Virtual Server Access Tab. Try checking this box: Allow computers which successfully authenticate to relay.
Check the outgoing SMTP logs.
Check: Mailbox – <Mailboxname> – Properties – Mail Flow Settings – Message delivery restrictions.
Try disabling Windows-Integrated-Security. Instead allow only standard authorization on the SMTP receiver on the Exchange 2010 server.
Check Attachment filtering on the Edge server.
Also you can follow the below steps
Add the user/aliases affected by this to the User List
Found under Management tab > User Management
Change the Unknown Users setting
Found under Management > Inbound Filtering
> Spam Handling Settings > Unknown Users
NOTE: BLOCKED is the recommended option
Cause : When Unknown Users is set to block and the user is not listed in the Control Panel, then email to that user is rejected.
For More Info: http://www.techrid.com/exchange-server-2010/mailflow/exchange-server-mail-flow-troubleshooting-with-list-of-exchange-2010-ndr-codes-2/
Regards,
Praveen
Remember to mark as helpful if you find my contribution useful or as an answer if it does answer your question.That will encourage me - and others - to take time out to help you Check out my latest blog posts @ Techrid.com

Exchange 2013 stops receiving external email after about 8 hours

Hello,
Just installed 2013 excahnge server 3 days ago. We noticed after the first night that we did not receive any external emails throughout the night. I could not find anything wrong with receive connectors. Telnet works internally when this
happens but NO access from public side testing with telnet. After I reboot the exchange server everything functions just fine and normal for about 8 hours until it happens again.
I dont know what to check or look for at this point. Very new to exchange 2013. Any kind of advice would be helpful at this time.
It is not a firewall issue. Same firewall and set of rules that we use for other/old mail servers. We only have 1 exchange server that has all roles.
Lead Pusher

OK... Did alot of testing and spent some time with Microsoft's support on the phone.
I believe there is actually two problems going on in this thread.
1. Exchange 2013 Admins that have changed the default receive connectors are experiencing a conflict on the scope settings. Make sure that none of the receive connectors are using the same ports, and that you have not modified the security settings in anyway
unless you really know what you are doing.
If you are unsure of what the settings should be after you have change them, the only suggestion I have right now, (as I have not taken the time to do screen shots or write down all the default settings) is to install Exchange 2013 on a virtual machine and
look at them, then change back the settings that do not match.
2. The Malware Agent has a flaw that is causing the the Microsoft Exchange Transport service to endlessly wait on the Malware Agent to process a message that it just can't handle. (Two reboots of the entire server may be needed to clear this, or sometimes
you can get away with restarting the Microsoft Exchange EdgeSync service.)
The Microsoft technician had me perform a sequence of steps that highlighted this. To see if this is infact your problem you can perform the following steps.
A) Once the Exchange server stops processing messages, figure out the rough time it stopped processing messages.
B) Open the event viewer.
C) Under "Windows Logs", right click "Application", select "Filter Current Log...", check "Warning" and "Error", then click "OK".
D) Scroll down the log to the rough time that your Exchange Server stopped processing messages. You are looking for a slew of errors about the same time from "MSExchange Extensibility" (1051), "MSExchange Transport" (9201), "MSExchange
Transport" (9201), "MSExchange Extensibility" (1056), "MSExchangeTransport" (10003), and "MSExchange Common" (4999).
It is the "MSExchangeTransport" (10003) that I believe is the real problem. The Microsoft technician agreed. He did not want to spectulate as to exactly what was going on, but it seems to me that since he had me disable the "Malware Agent"
for now, that it is indeed the problem.
E) So.... Open the Exchange Management Console and type "Disable-TransportAgent", followed by enter. It will prompt "Supply values for the following parameters:". Enter "Malware Agent", press enter again. Type "A",
for yes to all.
or
http://technet.microsoft.com/en-us/library/jj150526.aspx"
F) Go to run, enter "services.msc". On the window that opens, find "Micorosoft Exchange Transport" and restart it.
I know this is NOT a fix, but a work around that is less than desired as the Malware Agent is a filter to keep unwanted emails out. I highly recommend running some sort of 3rd party spam/Malware filter that has been fully tested to run with Exchange
2013 if you do this.
Microsoft is to contact me back once they can figure out why this is happening, and I believe in the end a patch for Exchange 2013 will be produce to correct the problem.
In the mean time.... don't waste your money on paying Micorosoft for support, as I have already done this.
For the individuals who say they are not experiencing trouble, I am going to go out on a limb here and say that either you have a 3rd party software program that is filtering the mail before it reaches the Malware Agent, you have disabled the Malware Agent,
or you are using another mail server to forward email to your Exchange 2013 server. With either of these cases you are much less likely to see this problem.
One last issue that a few people may be experiencing, is Exchange 2013, running on Server 2012 that is a VM. Several VM setups have a bug with the VM NIC management interface and Windows Server if you are using the same NIC for both. For example Xen
Server 5.6 and XEN XCP both have this bug. There is an patch for XEN Server 5.6, but so far nothing for Xen XCP.
I have spent many hours trying to figure my problems with Exchange 2013 and I will not swear that my entire post is correct, but I have gotten very much closer to a stable mail server after much work. If you feel that anything is incorrect, please reply
back and let me know why, so that we may all benifit.
P.S. Sorry for the mis-spellings and what not, I am very tired at the moment, and was forced to use explorer, because this site is not liking Chrome at the moment. (Will not let me login)

Exchange 2010 - Cannot receive/send large attachements - Did all the configurations needed

Hello All,
I am using Exchange 2010 Standard Server - SP1. I am having difficulty send\receiving large attachments. I went through all the KB documents and solutions, but to still no avail. Can anyone let me know if I am missing anything else.
Below is what I have done already:
Thank you in advance!
1. Organization Configuration
Organization Configuration | Hub Transport | Global Settings tab | Transport Settings |
2. Server Configuration
Server Configuration | Hub Transport | select a HT server | Receive Connectors -> select a connector | Properties |
3. Send Connector Configuration
Organization Configuration | Hub Transport | Send Connectors -> select connector | Properties |
4. Recipients Configuration
Recipients Configuration | Mailbox | select mailbox | properties | Mail Flow Settings | Message Size Restrictions|
5. Recipients Group Configuration
Recipients Configuration |Distribution Group | select Group | properties | Mail Flow Settings | Message Size Restrictions
6. Global Setting --- Please use adsiedit to connect Configuration container:
Configuration container | Services | Microsoft Exchange |YourOrgName| Global Settings | Message Delivery | Properties，check the below values：
a. delivContentLength
b. SubmissionContentLength
c. msExchRecipLimit
7. Transport Rules -- Organization Configuration | Hub Transport | Transport Rules

Hello All,
I am using Exchange 2010 Standard Server - SP1. I am having difficulty send\receiving large attachments. I went through all the KB documents and solutions, but to still no avail. Can anyone let me know if I am missing anything else.
The error I get is "552 5.3.4 Message size exceeds fixed maximum message size"
Below is what I have done already:
Thank you in advance!
1. Organization Configuration
Organization Configuration | Hub Transport | Global Settings tab | Transport Settings |
2. Server Configuration
Server Configuration | Hub Transport | select a HT server | Receive Connectors -> select a connector | Properties |
3. Send Connector Configuration
Organization Configuration | Hub Transport | Send Connectors -> select connector | Properties |
4. Recipients Configuration
Recipients Configuration | Mailbox | select mailbox | properties | Mail Flow Settings | Message Size Restrictions|
5. Recipients Group Configuration
Recipients Configuration |Distribution Group | select Group | properties | Mail Flow Settings | Message Size Restrictions
6. Global Setting --- Please use adsiedit to connect Configuration container:
Configuration container | Services | Microsoft Exchange |YourOrgName| Global Settings | Message Delivery | Properties，check the below values：
a. delivContentLength
b. SubmissionContentLength
c. msExchRecipLimit
7. Transport Rules -- Organization Configuration | Hub Transport | Transport Rules

Cannot receive new emails only one email from 2 days ago.

Thunderbird has been working fine - until yesterday when no new emails were received - the last one was dated 12/16. Today started Thunderbird and nothing newer was added (except the same email dated 12/16). When I click Get Messages - I get another copy of the 12/16 message. I can see newer messages via my server (comcast.net). I am running another account on another computer with TB program without problem. HELP!

''RonLar [[#question-1037196|said]]''
<blockquote>
Thunderbird has been working fine - until yesterday when no new emails were received - the last one was dated 12/16. Today started Thunderbird and nothing newer was added (except the same email dated 12/16). When I click Get Messages - I get another copy of the 12/16 message. I can see newer messages via my server (comcast.net). I am running another account on another computer with TB program without problem. HELP!
</blockquote>
''Matt [[#answer-666947|said]]''
<blockquote>
disable email scanning in your anti v irus and then execute a get mail.
</blockquote>
That did it! Many thanks to Matt!

When I send e-mail messages with file by using a POP3 in Exchange 2010 I received delivered message with file. How I can disable this functions that file do not include to delivery message. I use Exchange 2010 only local users.

When I send e-mail messages with file by using a POP3 in Exchange 2010 I received delivered message with file. How I can disable this functions that file do not include to delivery message. I use Exchange 2010 only local users.

I think there is not native rule for this, but you could try a transport rule which removes all attachments over a very small file size like 1KB.
http://blogs.technet.com/b/exchange/archive/2009/05/11/3407435.aspx
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Cannot receive/send emails via Mail on Mac using 10.6.8, keeps asking for password, very frustrating. Any ideas please? Regards

Cannot receive/send emails via Mail on Mac using 10.6.8, keeps asking for password, very frustrating. Any ideas please? Regards

One more time, iCloud mail accounts are .me, .mac and .icloud. New ones are only .icloud.
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HT3228 I have one of the origin iPads. Suddenly when I receive an email only the headings are shown - the body of the text is blank. Also previously received emails have also had the text body removed. Any suggestions as to what caused this?

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Exchange 2010 - Cannot receive external emails, only internal.

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