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Flow and Secure Messaging Question 0 Sign in to vote Hi, We are running Exchange 2007 SP3 We have 2 MX records for

421 Service Not Available, Closing Transmission Channel

our organisation, hosted with our ISP e.g. MX 10 mail.company.com.au MX 20 mail.isp.net Primary mail comes directly into our Exchange (through a Trend Smarthost). Secondary mail is forwarded from our ISP mail server. We installed updates on our Exchange 2007 server last month on 01/03/12 Since this date, 421 service temporarily unavailable messagelabs we have been unable to receive mail from mail.isp.net, with the following error logged on the ISP mail server: “delivery temporarily suspended: host mail.company.com.au [IP address] refused to talk to me: 421 Service not available,closing transmission channel” We have an example of an NDR being returned several days later to sender: Subject: Undelivered Mail Returned to Sender This is the Postfix program at host mail.isp.net. I'm sorry to have to inform you that your message could not be be delivered to one or more recipients. It's attached below. For further assistance, please send mail to If you do so, please include this problem report. You can delete your own text from the attached returned message. The Postfix program : delivery temporarily suspended: host mail. company.com.au [IP address] refused to talk to me: 421 Service not availab

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Center Product Guides Dedicated Hosting Reseller Hosting KnowledgeBase Website Email Domain Names Reseller smtp 421 4.3.2 service not available Billing Community Support Browse Questions Ask a Question User Submitted Articles Education Channels Android BoldGrid cPanel DokuWiki Drupal 7 ftp 421 service not available remote server has closed connection Drupal 8 Everything Email Joomla 2.5 Joomla 3.1 K2 Magento 1.6 Mambo MediaWiki Moodle Movable Type OpenCart OpenCart 2.0 osCommerce PHP-Fusion PHP-Nuke phpBB phpList Premium Website Builder PrestaShop 1.5 PrestaShop 1.6 https://social.technet.microsoft.com/Forums/en-US/f8db70af-0549-4070-bace-1fb8c77fddf4/exchange-mail-transmission-error-421-service-not-availableclosing-transmission-channel?forum=exchangesvrsecuremessaginglegacy SMF Tiki Wiki VirtueMart 3 Web Hosting Manager Website Design WordPress Tools & Resources Email Configuration Blacklist Check Visual DNS Lookup Quick Tagger Icon Sets Favicon Generator Bounce Back Parser What is my IP address? >>Email Blackberry (1)Bounceback Errors (18)Email Client Setup (13)Email Troubleshooting (22)Exim (8)Fighting Spam (23)Horde Webmail (18)How To and General Information (18)ipad (1) iPhone (3)Mac Mail (7)Mailing Lists (9)Outlook (17)Outlook http://www.inmotionhosting.com/support/email/bounceback-errors/email-error-421 2010 (2)RoundCube Webmail (15)Sending Email From a Webpage (5)SquirrelMail Webmail (23)Thunderbird (8)Webmail (2) >>Bounceback Errors Fixing the 550 No Such User Here email error (115,073 hits)Email error 552 (60,094 hits)Why does Email bounce, bounceback, or error? (48,594 hits)Email Error- Mailbox Quota Exceeded (38,010 hits)"550 Invalid address" email error (19,427 hits) Email error 554 (106,114 hits)What to do if an email is returned? (55,629 hits)Email error 550 (44,338 hits)Email error 450 (31,550 hits)Domain example.com has exceeded the max emails per hour (14,965 hits) Mail delivery failed: returning message to sender (77,375 hits)Email error 421 (49,154 hits)Email error 553 (39,160 hits)Email Bounce- Retry timeout exceeded (27,910 hits)535 incorrect authentication (12,954 hits) >>Email error 421 Email error 421 Written by Jacob Nicholson Views: 49,154 Published: Mar 19, 2014 Comments: 56 A421 email erroris typically a temporary routing issue on the receiving mail server's end. These should usually be resolved automatically, and you should receive a final bounce-back message if the message completely fails. You usually would not receive a bounce-back message for this type of error. If your message is going to be delayed more than 24 hours, then sometimes

CommunityOracle User Group CommunityTopliners CommunityOTN Speaker BureauJava CommunityError: You don't have JavaScript enabled. This tool uses JavaScript and much of it will not work correctly without it enabled. Please turn JavaScript back on and reload this page. Please enter a title. You can not post a blank https://community.oracle.com/thread/288893 message. Please type your message and try again. More discussions in Oracle Application Express http://www.orafaq.com/forum/t/129563/ (APEX) All PlacesDatabaseDatabase Application DevelopmentOracle Application Express (APEX) This discussion is archived 5 Replies Latest reply on Jan 8, 2007 7:24 AM by 498248 ORA-29278: SMTP transient error: 421 Service not available MikeOBI Feb 2, 2005 11:11 AM Hi All, I have a bunch of e-mails sitting in the HTMLDB E-mail queue that aren't being sent. 421 service I had this working OK on the hosted site, but not in my own environment. When I run the following command from SQL Plus: exec htmldb_mail.push_queue('localhost', '25') I get the following error message: "ORA-29278: SMTP transient error: 421 Service not available" Does this mean that my local Oracle Server needs to be identified to the SMTP server? Thanks, Mike 99043Views Tags: none (add) 10gContent tagged with 10g, mailContent tagged service not available with mail, plsqlContent tagged with plsql, smtpContent tagged with smtp This content has been marked as final. Show 5 replies 1. Re: ORA-29278: SMTP transient error: 421 Service not available joelkallman-Oracle Feb 2, 2005 1:06 PM (in response to MikeOBI) Mike, No, this does not mean that "your local Oracle Server needs to be identified to the SMTP server." This error message tells me that localhost, the same server where you have your Oracle database running, does not have an SMTP server up and running. Joel Like Show 0 Likes(0) Actions 2. Re: ORA-29278: SMTP transient error: 421 Service not available Roy4321 Feb 16, 2006 11:40 AM (in response to joelkallman-Oracle) how to check whether the smtp service is up and running in the local system where the database is present. i am trying to send mail from the system where the database is present. Like Show 0 Likes(0) Actions 3. Re: ORA-29278: SMTP transient error: 421 Service not available joelkallman-Oracle Feb 16, 2006 2:42 PM (in response to Roy4321) There are no capabilities directly in HTML DB to ascertain if the SMTP service is available. Additionally, there are no facilities to determine if the SMTP server in the Environment Settings is properly configured as an S

Message Navigator E-mail to friend unable to send email through oracledb [message #364826] Wed, 10 December 2008 03:28 panduoracledba Messages: 14Registered: September 2008 Junior Member Hi..everyone. i am using windows XP sp2 & Oracle Database 10g Enterprise Edition Release 10.1.0.2.0. SRIRAM123> conn / as sysdba Connected. SRIRAM123> / BANNER ---------------------------------------------------------------- Oracle Database 10g Enterprise Edition Release 10.1.0.2.0 - Prod PL/SQL Release 10.1.0.2.0 - Production CORE 10.1.0.2.0 Production TNS for 32-bit Windows: Version 10.1.0.2.0 - Production NLSRTL Version 10.1.0.2.0 - Production 5 rows selected. SRIRAM123> ed Wrote file afiedt.buf 1 select object_name 2 from dba_objects 3 where object_name like upper('utl_mail') 4* and object_type like 'PACKAGE' SRIRAM123> / OBJECT_NAME -------------------------------------------------- UTL_MAIL 1 row selected. SRIRAM123> @d:\sriramoracle\product\10.1.0\db_1\rdbms\admin\utlmail.sql Package created. Synonym created. SRIRAM123> @d:\sriramoracle\product\10.1.0\db_1\rdbms\admin\prvtmail.plb Package body created. No errors. SRIRAM123> alter system set smtp_out_server='ip_address' scope=both; alter system set smtp_out_server='ip_address' scope=both * ERROR at line 1: ORA-02095: specified initialization parameter cannot be modified SRIRAM123> ed Wrote file afiedt.buf 1* alter system set smtp_out_server='ip_address' scope=spfile SRIRAM123> / System altered. SRIRAM123> shutdown immediate Database closed. Database dismounted. ORACLE instance shut down. SRIRAM123> startup ORACLE instance started. Total System Global Area 171966464 bytes Fixed Size 787988 bytes Variable Size 145488364 bytes Database Buffers 25165824 bytes Redo Buffers 524288 bytes Database mounted. Database opened. SRIRAM123> BEGIN 2 UTL_MAIL.send(sender => 'sriram', 3 recipients => 'e-mail'[/email], 4 subject => 'UT

 

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