RE: SMTP;550 ... Relaying denied
- From: "Iain" <Iain@xxxxxxxxxxxxxxxxxxxxxxxxx>
- Date: Fri, 26 Aug 2005 01:45:28 -0700
Thank you Charles for your response.
After carrying out your suggestions and reading through the microsoft
articles, it came to light that the error was caused due to not have setup
the appropriate outbound security settings for the SMTP connector.
Iain
""Charles Yang [MSFT]"" wrote:
> HI,
>
> Welcome to SBS newsgroup.
>
> Issue description:
>
> ===========
>
> I understand that you encountered some problem when sending email to a
> internet user. You got 5.5.0 relay denied.
>
> Analyzing and suggestion:
>
> ===========
>
> Generally speaking, this error might be caused by several reason, we need
> to gather more information to isolate it:
>
> 1. Does it occur on the internal user or occur when you sending internet
> emails through SBS. If it occur on internet, please also check if this
> occur only to some of the user or to all the user on internet.
> 2. From your description, it seems you send internet emails via ISP
> smarthost for relay, I suggest you contact with your ISP to check if either
> your domain or the some of the internet domain you want to send have been
> added to the blacklist on your ISP's smarthost. This should be a common
> cause of such issue.
> 3. Please also follow the steps above to see if smarthost of your ISP works
> well.
>
> I suggest you telnet to the smart host on port 25 and then try to send an
> email using the SMTP commands. For detailed information and steps, see:
>
> 153119 XFOR: Telnet to Port 25 to Test SMTP Communication
> http://support.microsoft.com/?id=153119
>
> If you can successfully send emails using the SMTP commands, the issue
> should be with your SBS server. If you cannot send emails using the
> commands, the issue should be with your ISP's smart host and you need to
> contact your ISP for help.
>
> First let us assume it as SBS issues, regarding this issue, please try the
> following suggestions:
>
> A. Make sure the smart host is typed correctly in "SmallBusiness SMTP
> connector". You may also use the smart host's IP address for a test (first
> ping the FQDN pop.ptld.qwest.net and then type IP address you get enclosed
> with "[]", restart the Default SMTP Virtual Server and then test the
> issue). See:
>
> 251951 Exchange System Manager Does Not Verify Smart Host DNS Names
> http://support.microsoft.com/?id=251951
>
> B. Re-run ICW and go through all the steps of the wizard. This wizard will
> restore all Exchange settings to default to avoid any problems caused by
> incorrect configurations, please refer to the following KB article for more
> detailed information:
>
> 825763 How to configure Internet access in Windows Small Business Server
> 2003
> http://support.microsoft.com/?id=825763
>
> C. Antivirus software is known to cause such issues. I would suggest you
> temporarily DISABLE your antivirus applications and services, restart the
> SMTP service and try again.
> D. If your ISP's smart host requires authentication, make sure the correct
> user name and password are specified for "SmallBusiness SMTP connector".
>
>
> I appreciate your time to cooperate with us on this issue, if you have any
> further issue, please let me know. I am glad to be any further updates.
>
>
>
> Best regards,
>
> Charles Yang (MSFT)
>
> Microsoft CSS Online Newsgroup Support
>
> Get Secure! - www.microsoft.com/security
>
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> --------------------
> | Thread-Topic: SMTP;550 ... Relaying denied
> | thread-index: AcWnzr3Uneh1y4/CRV2iIJG0YyJFww==
> | X-WBNR-Posting-Host: 81.133.90.78
> | From: "=?Utf-8?B?SWFpbg==?=" <Iain@xxxxxxxxxxxxxxxxxxxxxxxxx>
> | Subject: SMTP;550 ... Relaying denied
> | Date: Tue, 23 Aug 2005 03:38:04 -0700
> | Lines: 25
> | Message-ID: <1D56F3E9-393F-49B1-9AA9-5928D72B86C1@xxxxxxxxxxxxx>
> | MIME-Version: 1.0
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> | X-Tomcat-NG: microsoft.public.windows.server.sbs
> |
> | Good morning,
> |
> | recently, I have encounted a problem with sending and replying to emails.
> I
> | am running SBS 2003 and Exchange has been set up to send emails using my
> | ISP(BT). Until today, this worked successfully... I am still able to
> send
> | email internaly accross the network...
> |
> | The following error message is sent back via Outlook 2003
> |
> | Your message did not reach some or all of the intended recipients.
> |
> | Subject: test
> | Sent: 23/08/2005 10:21
> |
> | The following recipient(s) could not be reached:
> |
> | xxxxxxxx@xxxxxxxxxxxxx on 23/08/2005 10:18
> | There was a SMTP communication problem with the recipient's
> | email server. Please contact your system administrator.
> | <zzzzz.zzzzzzzzzzzzzzzzzzz.local #5.5.0 smtp;550
> | <xxxxxxxx@xxxxxxxxxxxxx>... Relaying denied>
> |
> | Please Help!!
> |
> | Kind Regards
> |
>
>
.
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