Microsoft KB Archive/98208

= SMTP: When the SMTP Gateway Uses Quotation Marks =

Article ID: 98208

Article Last Modified on 10/30/2006

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APPLIES TO


 * Microsoft Mail Gateway to SMTP 2.1
 * Microsoft Mail Gateway to SMTP 3.0

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This article was previously published under Q98208



SUMMARY
The Microsoft Mail Gateway to SMTP is RFC 822 compliant regarding double and single quotation marks.



Double Quotation Marks
Double quotation marks are for when certain special characters are used within the header fields of the message. The special characters are listed in RFC 822, section 3.3, titled &quot;Lexical Tokens.&quot; The special characters are:  (    Left parenthesis  )    Right parenthesis <   Less-than sign >   Greater-than sign @   At sign ,   Comma ;   Semicolon :   Colon \   Backslash &quot;   Double quotation marks .   Period [   Left square bracket ]   Right square bracket If the gateway sees any of these characters within the header fields, it uses double quotation marks around the information.

Note: If a SMTP host wants to enclose something in double quotation marks, the text enclosed can be any ASCII character, or white space, EXCEPT:  &quot;       Double quotation marks \      Backslash CR     Carriage return

Single Quotation Marks
RFC 822 does not include any discussion on single quotation marks.

