Google Mail Telnet Syntax Error
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Our System Has Detected That This Message Is Not Rfc 5322 Compliant
Here's how it works: Anybody can ask a question Anybody can answer The best answers are voted up and rise to the top Telnet 555 5.5.2 Syntax error. b42si7464989qgd.93 - gsmtp up vote 3 down vote favorite I'm trying to do email spoofing in cmd in telnet but failed to do so. I entered C:\Documents and Settings\Owner>telnet alt3.gmail-smtp-in.l.google.com 25 Then rfc 5322 compliant gmail it brought me here 220 mx.google.com ESMTP p59si7495147qga.25 - gsmtp Typed this one ehlo Then it produced: 250-mx.google.com at your service, [122.54.217.133] 250-SIZE 35882577 250-8BITMIME 250-STARTTLS 250-ENHANCEDSTATUSCODES 250 CHUNKING I continued typing this: MAIL FROM:
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Smtp Commands Telnet
Kong 10. Houston, TX Exchangepedia Blog is read by visitors from all 50 US States and 150 countries world-wide Monday, July 24, 2006 HELO RFC 2821: http://superuser.com/questions/736262/telnet-555-5-5-2-syntax-error-b42si7464989qgd-93-gsmtp Telnetting to Gmail's SMTP servers Posted by Bharat Suneja at 7:48 PM Telnetting to SMTP port of a mail server is a common troubleshooting task to test SMTP connectivity and mail flow that most of us do ever so frequently. After the initial HELO/EHLO command, you issue a MAIL FROM command that http://exchangepedia.com/blog/2006/07/helo-rfc-2821-telnetting-to-gmails.html provides a return path to the receiving server - generally the SMTP address of the sender e.g. [emailprotected]With most servers, MAIL FROM:[emailprotected] works.Today I was testing some X-header functionality with Google's Gmail service, after having performed similar tests against Exchange Server 2007 (Beta 2), Exchange 2003, and Hotmail. However, when I issued the MAIL FROM command when testing with Gmail, it threw up a syntax error! I use this almost several times a day, and never have I seen a syntax error being thrown up on MAIL FROM or RCPT TO.Out of curiosity, I decided to lookup RFC 2821 to figure out if there was something I wasn't doing right or that Gmail was enforcing in its zeal to be strictly RFC-compliant. As it turns out, the RFC does require addresses to be enclosed in "<" and ">" brackets!Specifically:The first step in the procedure is the MAIL command.MAIL FROM:
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