Exchange 2010 Error 550 Unable To Relay
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550 5.7.1 Unable To Relay Exchange 2010 External
FROM:testA@ourdomain.ORG 250 2.1.0 Sender OK RCPT TO:test@HOTMAIL.COM 550 5.7.1 Unable to relay 451 4.7.0 Timeout waiting for client inputGerald Rama Tuesday, March 29, 2011 6:49 PM Reply | Quote Answers 1 Sign in to vote check out http://exchangeserverpro.com/how-to-configure-a-relay-connector-for-exchange-server-2010 Marked as answer by Novak Wu Friday, April 08, 2011 6:16 AM Tuesday, March 29, 2011 6:53 exchange 2010 unable to relay to external domain PM Reply | Quote All replies 1 Sign in to vote check out http://exchangeserverpro.com/how-to-configure-a-relay-connector-for-exchange-server-2010 Marked as answer by Novak Wu Friday, April 08, 2011 6:16 AM Tuesday, March 29, 2011 6:53 PM Reply | Quote 0 Sign in to vote As an additional information, I would like to share you the following article to configure a relay connecter. http://blogs.technet.com/b/exchange/archive/2006/12/28/3397620.aspx Thanks. NovakPlease remember to click “Mark as Answer” on the post that helps you, and to click “Unmark as Answer” if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread. Friday, April 01, 2011 2:52 AM Reply | Quote 0 Sign in to vote Hi Gerald, In Addition with above folks. This error message os expected one. Default receive connector only allow you to relay message to internal users (anonymous accesss on default receive connector). For relay to internet users, you must have to create one new receive connector and config
17 June 2012] This tip explains how to allow applications to establish an unauthenticated connection to Exchange and send exchange 2010 unable to relay from internal server e-mails to external addresses. Sometimes there is the necessity of applications sending
550 5.7.1 Unable To Relay Exchange 2013
unauthenticated e-mails to external users. An example of this might be a Call Logging system such as one
550 5.7.1 Unable To Relay (in Reply To Rcpt To Command)
used by the Help Desk to log IT service calls for users that accepts e-mails from external addresses (students or workers that haven’t joined the organization yet or are having https://social.technet.microsoft.com/Forums/exchange/en-US/ab3105d5-2948-4a35-8291-81f644ac8957/exchange-2010-571-unable-to-relay?forum=exchange2010 problems with their e-mail account, for example). In these scenarios, the Call Logging system might be configured to send an automatic reply once a call is logged, but if it only supports unauthenticated SMTP, Exchange will automatically blocked it as this is seen as Relaying. To overcome this, you should create a new Receive Connector just for the servers http://www.msexchange.org/kbase/ExchangeServerTips/ExchangeServer2010/SecurityMessageHygiene/5505.7.1Unabletorelay.html hosting that application(s) and allow for anonymous users to use it (from the Permissions Groups tab in the Exchange Management Console). This will grant permissions to the anonymous account but it still doesn’t give you relay permission. If you try to relay using this send connector, you will get the following SMTP error message: 550 5.7.1 Unable to relay The ACL that controls relay is the ms-Exch-SMTP-Accept-Any-Recipient. To add this ACL to this receive connector, we have to use Exchange Management Shell: Get-ReceiveConnector "" | Add-ADPermission -User "NT AUTHORITY\ANONYMOUS LOGON" -ExtendedRights "ms-Exch-SMTP-Accept-Any-Recipient" Now your application will be able to establish an unauthenticated connection to Exchange and send e-mails to external addresses. Please, don’t forget to keep Relaying as restricted as possible! See Also See Also Spam or Anonymity: We Don't Have to Choose 15 Nov. 2011 Nathaniel Borenstein Managing Relay in Exchange Server 2013 (Part 2) 21 Jan. 2016 Anderson Patricio Managing Relay connectors in Exchange Server 2007/2010 (Part 2) 7 May 2013 Anderson Patricio Anonymous Relay Receive Connector 3 Nov. 2010 Jaap Wesselius Managing Relay
Mailbox Recovery, Exchange Server Recovery No Comments While working on Exchange Server with MS Outlook, the users often bump across the following error message when they try to send emails http://www.stellarservertools.com/blog/exchange-error-550-unable-to-relay/ outside their domain: “550 5.7.1 Unable to Relay” Cause: Error 550 occurs when emails are sent to a domain other than the user's. This error signifies that the outgoing mail server fails to recognize the sender. This means that the users are not authenticating to the server and hence, they are not allowed to send emails. The second unable to possible reason could be the absence of the recipient policy for that domain in the user's department. Exchange Database (EDB) corruption is another factor that generates the above error. Resolution: The aforementioned error message can be resolved by these solutions: Solution1: Go to the Administrative Groups in the Exchange Server Manager. Select Administrative Group Name -> Server unable to relay -> Server Name -> Protocols -> SMTP. Choose Properties option by right clicking on Default SMTP Virtual Server. Choose Access tab and click on Relay to select ‘only the list below‘. Now, add the IPs you want to relay and your domain. Finally check ‘Allow all computers which successfully authenticate to relay, regardless of the list above‘. Solution2: You can also figure out the various Exchange Server errors you encounter in the application event log and look for their resolve on-line. If the Exchange Error 550 is due to the result of database corruption, it can be repaired using Microsoft inbuilt utility Eseutil. In case after using the ESEUTIL utility the database is not repaired due to severe corruption then you need to devoir a third party Exchange Server Database recovery tool. Among the copious EDB repair tools available in the market, a reliable solution is “Stellar Phoenix Mailbox Exchange Server Recovery”. This powerful software is able to recover all the data from the corrupt EDB file in 3 simple