421 Error Message Outlook Express
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Microsoft Outlook Error Messages
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TechSpot Forums Forums Software Apps & Software Today's Posts Unable to send mail using Outlookexpress Byjasonbourne Apr 11, 2006 I am able to receive mail and read mails using outlook express but not able to send them. it shows any one of the following errors. examples: An unknown error has occurred. Account: 'pop.mail.yahoo.com', Server: outlook express user manual 'smtp.mail.yahoo.com', Protocol: SMTP, Server Response: '421 Cannot connect to SMTP server 68.142.203.143 (68.142.203.143:25), connect error 10061', Port: 25, Secure(SSL): No, Server Error: 421, Error Number: 0x800CCC67 The message could not be sent because one of the recipients was rejected by the server. The rejected e-mail address was 'u0503667@nus.edu.sg'. Subject 'print this *****', Account: 'pop.nus.edu.sg', Server: 'smtp.nus.edu.sg', Protocol: SMTP, Server Response: '550 5.7.1 Unable to relay for u0503667@nus.edu.sg', Port: 25, Secure(SSL): No, Server Error: 550, Error Number: 0x800CCC79 And for the IMAP server that i use it shows the following error when i try to send it. The server does not support a SSL connection. Account: 'stuimaphost.comp.nus.edu.sg', Server: 'mailauth.comp.nus.edu.sg', Protocol: SMTP, Server Response: '250 HELP', Port: 25, Secure(SSL): Yes, Server Error: 250, Error Number: 0x800CCC7D Apr 11, 2006 #1 Nodsu TS Rookie Posts: 5,837 +6 First: SMTP connection to the server failed. Something is blocking SMTP traffic - could be your ISP. Second: The server supports SMTP, but doesn't l
421 is a common SMTP (Simple Mail Transfer Protocol) Outlook error message. MS
Error 421 Cannot Connect To Smt
Outlook is one of the best and popular email applications
Error 421 Cannot Connect To Smtp Server
widely used by PC Windows users for sending and receiving emails within and outside workplaces. It is server error 421 windows live mail mostly commonly used in offices by professionals for the faster communication. This error may occur while sending and receiving emails on the server. The error 421 http://www.techspot.com/community/topics/unable-to-send-mail-using-outlook-express.47951/ message is displayed in either of the following formats: “An unknown error has occurred: Server error 421” "Could not send your message. Error 421" 421 4.2.1 : (DYN:T1) http://postmaster.info.aol.com/errors/421dynt1.html 421 4.3.1 Out of disk space for temp file 421 4.3.2 All server ports are busy 421 Downstream server error 421 Fork failed 421 Greylisting http://errortools.com/outlook/fix-error-421/ enabled, please try later “An unknown error has occurred. Subject ‘Testing’, Account: ‘pop.charter.net’, Server: ‘mail.charter.net’, Protocol: SMTP, Server Response: ’421 Message rejected’, Port: 25, Secure(SSL): No, Server Error: 421, Error Number: 0x800CCC67” Solution Download available to completely repair Error 421 Recommended: Download the Outlook PST Repair Utility to safely recover email, calendar contacts and all PST data. Download Certified safe, virus free download. Error Tools Editor's Choice. Error Causes Some common causes for this critical Outlook error are: PST storage size exceeds 2GB file size Improper ISP settings Slow internet connection PST file corruption Trojan attack and viral infection This is a critical Outlook error which should be resolved timely. If you delay, it may cause you a great deal of inconvenience. The error code 421 hampers your ability to access your email account, send and receive emails, add new contacts, view emails, calendar entries and journals. In other words, it just brings your email activities to a standstill
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