12 posts - 5 authors - Last post: Sep 9By: -Phixit-, Forum: Microsoft Exchange, I have been having one of those . 550 5.7.1 Unable to relay . How is your SMTP relay configured? .

I've a Exchange 2010 Server that is back to ISA Server 2006. . Exchange 2010 SMTP response Server error: '550 5.7.1 Unable to relay'. Asked by jbernier_aio .

4 posts - 2 authors - Last post: Jan 20, 2010After migrating to Exchange 2010 from Exchange 2007, we are no longer able to . SMTPAddressFailedException: 550 5.7.1 Unable to relay .

11 posts - 4 authors - Last post: Mar 9, 2010<mail.xxx.be #5.7.1 smtp;550 5.7.1 Unable to relay for xxx> . Rmq : sous Windows Server 2000 et Exchange 2000 . . xxx le 8/03/2010 12:43 .

10 posts - 2 authors - Last post: Mar 5, 2010Failed to test inbound SMTP mail flow. . One or more SMTP tests failed for this Mail Exchanger. . . 550 5.7.1 Unable to relay [5086 ms] QUIT .

Jun 12, 2007 – 550 5.7.1 Unable to relay for Spamking@SpamKing.com . Why this person is asking me to accept mail for SMTP domain @SpamKing.org and .

10 posts - 6 authors - Last post: Jun 17, 200914 replies. Last post Jul 02, 2010 10:30 AM by joy_vinod. (0) . Your SMTP server isn't set up to allow relay for localhost. If you open up . I am getting this exact error using Exchange server instead of the SMTP server in IIS. .

Nov 17, 2006 – Exchange Server 2010 . In the case of SMTP , the .

May 22, 2008 – An open mail relay is a SMTP server configured to allow anyone on . If you get a error message that looks roughly like "5.7.1 Unable to relay" or "550 5.7.1 . Exchange 2003 has a feature to reject messages if they're not from .

Resolving SMTP error 550 5.7.1 Unable to relay for user@domain.com Error .

90 posts - 9 authors - Last post: Mar 22Is it your server issuing the SMTP unable to relay response or is it an external . I know it is something related to Exchange 2003, but none of the . Proposed As Answer byJulesCardinale Monday, December 20, 2010 5:45 AM .

9 posts - 2 authors - Last post: Mar 13, 2008Exchange 2007 error 550 5.7.1 Unable to relay Exchange 2007 / 2010. . back to the IP address connecting to confirm that it is an SMTP server. .

Jul 13, 2010 – Exchange 2007/ 2010: Unable to relay 5.7.1 . 1)The session is not authenticated and does not have the 'ms-Exch-SMTP-Submit' permission. .

Oct 19, 2004 – Mail up again - No more "550 5.7.1 Unable to relay for . . on Exchange 2003 ( recipient policies, SMTP connectors, relaying, DNS configuration .

4 posts - 2 authors - Last post: Mar 16, 2010Current discussion: Exchange 2007 "550 5.7.1 Unable to relay" . On Mon, 15 Mar 2010 14:55:13 -0700 (PDT), Mezlo <mezlo@sunfire.org> wrote: . Receive Connector (Ms-Exchange-SMTP-Accept-Any-Recipient). .

14 posts - 10 authors - Last post: Apr 14The clients get the "550 5.7.1 Unable to relay" message. . How, where we can enable a setting for smtp relay for external POP3 users? .

Dec 13, 2010 – SharePoint 2010 installation guide (Windows 7 or Vista) – Part2 | Home . Telnet: 550 5.7.1 Unable to relay for ferdous@congral.com . designed to prevent unauthorized users from using your Exchange server to relay mail. .

Jan 3, 2007 – Screenshot: Allowing relaying on Exchange Server 2003 SMTP Virtual Server Figure 1: Controlling . error message: 550 5.7.1 Unable to relay .

Problem Description: When trying to send email via SMTP with an exchange server you get the message "Mailbox unavailable. The server response was: 5.7. 1 Unable to relay". . Last Updated: 01/15/2010 02:49 PM. View the discussion .

Get tips on enabling and disabling Exchange Server non-delivery reports .

Oct 22, 2008 – Error: 550: 5.7.1 Unable to Relay when sending out POP3 messages . in various forums, there is a lot of confusion on setting up POP3 on Exchange Server 2007 in general. . On the Outgoing Server tab check the box “My outgoing server ( SMTP) requires authentication”. . April 13th, 2010 at 12:12 pm .

Jun 29, 2011 – 550 5.7.1 Unable to Relay Mail From Exchange Server . for external addresses as described in How to Set Up SMTP Relay in Exchange 2007. .

Feb 28, 2011 – So I found myself needing an SMTP relay on my network at home, and . addresses, I got the dreaded 550 5.7.1 Unable to relay response. .

Make sure the Virtual SMTP Server is listening on port 25. Start System Manager . The logfile shows 550 5.7.1 Unable to relay (Exchange 2007/2010); Cause: .

Zone: Exchange Email Server. Tags: Outlook 2007, Exchange 2010. SMTP Relay .

5 posts - 3 authors - Last post: Mar 16Moving to 8.160 and turning "off the Reject Malware during SMTP . The Exchange 2010 Server gets a "550 5.7.1 Unable to relay" error .

20 posts - 3 authors - Last post: Mar 24, 2010I have configured SMTP at the webserver level with the following settings: . The server response was: 5.7.1 Unable to relay for helpdesk@mediaone.com . # Date: 2010-03-17 01:14:26 . . I am a long-time Exchange administrator, so I know how email works, and I'm willing to share what I know about that. .

Aug 25, 2011 – SMTP error message “550 5.7.1 Unable to relay”. A customer wants to send through the Exchange 2010 hub transport server to external .

4 posts - 3 authors - Last post: Jun 7, 2010SMTP failure after upgrading to Exchange 2010. . of: "550 5.7.1 unable to relay", from the Perfect Tracker logs. I created a recieve connector .

KBXW025, Error: Unable to start inbound SMTP connection manager. Error: Port .

Dec 28, 2006 – Exchange Server 2010 . You might need to do this if you are getting the SMTP error message "550 5.7.1 Unable to relay". The top rule is that .

3 posts - 2 authorsSituation: The client setup Windows SBS 2008 with Exchange. They can . by blin » Sat Aug 21, 2010 3:15 am. Our client . After that, they can't send email with this message: "Email Send Failure - SMTP Code:550 550 5.7.1 Unable to relay". .

This thread deals with Microsoft Exchange, SMTP, Mez, connectors, and bb232021. . Mezlo posted on Monday, March 15, 2010 5:55 PM . connectors but no matter what I do I still get "550 5.7.1 Unable to relay" when sending to an external .

My Exchange 2007 or 2010 does not accept emails larger than 10MB. . Exchange 2007 rejects POPcon emails with "550 5.7.1 Unable to relay". . Exchange/SMTP connection was unexpectedly closed or error message "454.5. 7.3 Client .

Nov 16, 2010 – #<#5.7.1 smtp;550 5.7.1 Unable to relay> #SMTP# when sending notifications. . not being sent after upgrading to Microsoft Exchange 2010? .

5 posts - 2 authors - Last post: Mar 16, 2010connectors but no matter what I do I still get "550 5.7.1 Unable to relay" when sending . Unable to relay". On Mon, 15 Mar 2010 14:55:13 -0700 (PDT), Mezlo . Receive Connector (Ms-Exchange-SMTP-Accept-Any-Recipient). .

Nov 17, 2010 – TMG&EDGE server 550 5.7.1 Unable to relay. I have been working on one of our LABs last couple days to configure Exchange 2010 servers to .

Aug 29, 2005 – Microsoft Exchange Server 2010, Microsoft Exchange Server 2007, . SMTP error 550 5.7.1: User unable to relay message to a specific domain .

Feb 22, 2011 – Microsoft Exchange 2007 550 5.7.1 Unable to Relay on Additional New Domain . be a problem on the SMTP Receiver, but I checked that the Anonymous permission was on there anyway, . November 5, 2010 · 3 Comments .

Aug 19, 2010 – In most Exchange Server 2010 environments there will be the need to allow . SMTP communication is handled by the Hub Transport server in an . 2.1.0 Sender OK rcpt to: somebody@gmail.com 550 5.7.1 Unable to relay .

16 posts - 15 authors - Last post: Aug 18"SMTP server response: 550 5.7.1 Unable to relay. . on it, in addition to IIS running, and the relay options are in the Exchange System Manager, not in IIS Manager. . Posted by redbull247365 on January 12, 2010 at 5:10pm .

3 posts - 2 authors - Last post: Mar 1, 2010Joined: Fri Feb 26, 2010 8:52 am. Posts: 0. Post 550 5.7.1 Unable to relay [4196 ms] [RESOLVED]. Hi, I have an Exchange 2007 mail server which MX Toolbox is reporting the . less than 5 seconds and un-masked the SMTP banner to have rDNS resolve well. Unfortunately still receiving the unable to relay! .

4 answers - Jan 14, 2009I am able to send emails using the typical C# SMTP code across Exchange 2007 as long as both the from . The server response was: 5.7.1 Unable to relay . . Microsoft Exchange 2007/2010 send SOAP request on an event? .

Nov 28, 2006 – An open SMTP relay allows anyone to route emails through it. . it rejects it with ' 550 5.7.1 Unable to relay for someone@exchangeinbox.com'. .

Jan 26, 2011 – Maintaining SMTP Relay in Exchange 2010 Migration. During a . Connecting to Ex2007HT.corp.com. via relay… . 550 5.7.1 Unable to relay .

Allow relaying on Exchange 2007 & Exchange 2010 in 4 easy steps . that needs to send emails, I have it configured to use our exchange server as SMTP. . users however external ones are failing with a "550 5.7.1 Unable to relay" error .

Oct 6, 2009 – if you are getting the SMTP error message “550 5.7.1 Unable to relay” when you try to relay smtp messages thru your exchange server, you .

8 answers - Mar 3, 2009Diagnostic-Code: smtp;550 5.7.1 Unable to relay for richard@accentient.com *** . The messages never make it to our Exchange server based on logs and message tracking. . Arrival-Date: Fri, 16 Jul 2010 11:11:05 -0700 .

5 posts - 3 authorsProblem with Exchange RELAY with Error (550 5.7.1 Unable to relay ). Asked by Shahnawaz Ali . I have Checked SMTP Relay in Exchange, Everything is seems to be OK. What could be issue ? . Reply from bibo maria | Aug 7, 2010. Reply .

You configure your application to use Exchange 2007/2010 as SMTP server. You application try to . “550 5.7.1 Unable to relay” error. Solution Allow relaying for .

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