Error 421 Smtp Outlook
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Error: "Email Error: 421..." appears when I send emails in Microsoft Outlook or Windows Mail with a Norton product installed These
421 Cannot Connect To Smtp Server Outlook
steps are for the current version of the Norton products. If
421 Downstream Server Error
you have an older version or if you do not know your product version, go to refused to talk to me: 421 downstream server error Norton Update Center. Disable outgoing email scan When you disable the outgoing email scan, your outgoing emails are no longer scanned. However, Email Protection continues to protect http://answers.microsoft.com/en-us/msoffice/forum/msoffice_outlook-mso_other/send-test-e-mail-message-the-server-responded-421/ec1c90f3-414f-4e75-bbda-0b67dc5159ce your computer by scanning the incoming emails. Start your Norton product. Click Settings. Under Detailed Settings, click Antivirus. On the Scans and Risks tab, next to Email Antivirus Scan, click Configure. In the Email Antivirus Scan window, under What to scan, uncheck Scan outgoing email messages. Click Apply. In the Security Request window, from https://support.norton.com/sp/en/us/home/current/solutions/kb20101015110602EN_EndUserProfile_en_us the drop-down menu, select Permanently, and then click OK. In the Email Antivirus Scan window, click OK. Click Close. Thank you! Thank you for using Norton Support. < Back Was this information helpful? Yes No DOCID:kb20101015110602EN_EndUserProfile_en_us Operating System:Windows Last modified:10/03/2016 × × What can we help you with? GENERAL HELP Download & Install Renewal & Purchase Threat Removal PRODUCT HELP Norton Security for Windows Norton Security for Mac Norton Security for Mobile Did you get your Norton product from xfinity? Other products I'm not sure Help for other Norton Products: Norton Internet Security & AntiVirus for Mac Norton Security Suite for Comcast Norton WiFi Privacy Norton Small Business Norton Identity Protection Norton Identity Safe Norton Online Backup Norton Family Norton Ghost Norton Utilities Norton Studio Back I'm not sure × Global Support Choose your language from the list below Americas Português (do Brasil) English Canada Français Español (LAM) Middle East Africa العربية עברית Türkçe English Europe Čeština Dansk Nederlands Suomi Fr
times) 0 Members and 1 Guest are viewing this topic. jpflathead Newbie Posts: 1 Outlook error 421 « on: April 11, 2006, 10:54:09 PM » Just my 2 (euro)cents:After an update of Avast Home a few days ago I https://forum.avast.com/index.php?topic=20463.0 got on our laptop (XP sp1, Outlook2k) the following error:Protocol: SMTP, Server Response: '421 concurrent connections limit in avast exceeded', Port: 25, Secure(SSL): No, Server Error: 421Not on my main machine. Also my dauther suffered from the http://superuser.com/questions/404643/outlook-send-test-e-mail-message-the-server-responded-421-cannot-establish-ss same error on one of her machines.I couldn't find a good solution (at that time, just saw the parameter in the .ini file .My solution was: download the newest version. Disconnect from the net. Uninstall Avast. Reboot.Install error 421 the newest version. Reboot. Back to the internet. Update.And worked like a charm. Could something have gone wrong with the automatic update?BTW both my and my daughter's machines live behind a Smoothwall so no firewall on our machines. Logged Lisandro Avast team Certainly Bot Posts: 66690 Re: Outlook error 421 « Reply #1 on: April 12, 2006, 02:55:10 AM » Quote from: jpflathead on April 11, 2006, 10:54:09 PMAfter an update of Avast Home a 421 cannot connect few days ago I got on our laptop (XP sp1, Outlook2k) the following error:Protocol: SMTP, Server Response: '421 concurrent connections limit in avast exceeded', Port: 25, Secure(SSL): No, Server Error: 421I think this is not related to the last update. The concurrent connections limit - a Windows imposition - could be patched to unlimited (or to 500, 200, 100 connections). Anyway, can you take a look here: http://forum.avast.com/index.php?topic=13329.msg112751#msg112751I'm not an expert on Outlook but seem that "Maximum number of server connections to cache" is set to 4 and while downloading it requires more than this limit. Here there is Thunderbird timeouts: http://forum.avast.com/index.php?topic=11596.msg106618#msg106618Quote from: jpflathead on April 11, 2006, 10:54:09 PMI couldn't find a good solution (at that time, just saw the parameter in the .ini file .Which parameter?Quote from: jpflathead on April 11, 2006, 10:54:09 PMMy solution was: download the newest version. Disconnect from the net. Uninstall Avast. Reboot.Install the newest version. Reboot. Back to the internet. Update.And worked like a charm. Could something have gone wrong with the automatic update?The new beta version should finish the timeouts problems as the scanning mechanism was completed changed.Since avast! version 4.7.807 the mail scanner module ("Internet Mail" provider) has been significantly changed to improve the overall user experience, especially in case of slow connections (dial-up). Namely, most of (if not all) the "Timeout expired" related
here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies of this site About Us Learn more about Stack Overflow the company Business Learn more about hiring developers or posting ads with us Super User Questions Tags Users Badges Unanswered Ask Question _ Super User is a question and answer site for computer enthusiasts and power users. Join them; it only takes a minute: Sign up Here's how it works: Anybody can ask a question Anybody can answer The best answers are voted up and rise to the top Outlook: Send test e-mail message: The server responded: 421 Cannot establish SSL up vote 1 down vote favorite I create account in Outlook. Account Type: POP3 When I run test account settings, log in onto incoming mail server POP3 successfully. But for send test e-mail message i get error: Send test e-mail message: The server responded: 421 Cannot establish SSL What is solution for this problem. microsoft-outlook user-accounts pop3 share|improve this question asked Mar 25 '12 at 17:45 ivan 108116 2 Disable SSL in the send-side configuration of the account. Or, better, change the port to the correct SMTPS port (secure submission) for the server. –David Schwartz Mar 25 '12 at 19:52 add a comment| 2 Answers 2 active oldest votes up vote 1 down vote First of all you need to make sure the mail server supports SSL for SMTP. And if it does, you also need to know on which port. The default port in Outlook for SMTP is 25, but in Google for example SSL is supported on port 465. Also your mail server might support other security protocols for SMTP, like TLS. Again Google establishes TLS connection on port 587. So really, you need to go your mail provider support and obtain this information from them. You can't really guess what combination of protocols and ports they are using. All these settings in Outlook can be changed at: File -> Info -> Account Settings -> Email tab -> Select email account -> Change -> More Settings -> Advanced tab share|improve this answer answered Feb 1 '14 at 1:34 RusI 647711 add a comment| up vote -1 down vote Did you try to ask postmaster "How to configure account properly"? Why do you think we are wizards here? If server res