使用 telnet 和 ESMTP 协议发送带有附件的电子邮件

Question

缺少标题和邮件正文之间的最小单空白行。

还有分隔消息部分所需的空行。来自 RFC

 From: Nathaniel Borenstein <[email protected]> 
 To:  Ned Freed <[email protected]> 
 Subject: Sample message 
 MIME-Version: 1.0 
 Content-type: multipart/mixed; boundary="simple boundary" 

 This is the preamble.  It is to be ignored, though it 
 is a handy place for mail composers to include an 
 explanatory note to non-MIME compliant readers. 
 --simple boundary 

 This is implicitly typed plain ASCII text. 
 It does NOT end with a linebreak. 
 --simple boundary 
 Content-type: text/plain; charset=us-ascii 

 This is explicitly typed plain ASCII text. 
 It DOES end with a linebreak. 

 --simple boundary-- 
 This is the epilogue.  It is also to be ignored.

Answer 1

缺少标题和邮件正文之间的最小单空白行。

还有分隔消息部分所需的空行。来自 RFC

 From: Nathaniel Borenstein <[email protected]> 
 To:  Ned Freed <[email protected]> 
 Subject: Sample message 
 MIME-Version: 1.0 
 Content-type: multipart/mixed; boundary="simple boundary" 

 This is the preamble.  It is to be ignored, though it 
 is a handy place for mail composers to include an 
 explanatory note to non-MIME compliant readers. 
 --simple boundary 

 This is implicitly typed plain ASCII text. 
 It does NOT end with a linebreak. 
 --simple boundary 
 Content-type: text/plain; charset=us-ascii 

 This is explicitly typed plain ASCII text. 
 It DOES end with a linebreak. 

 --simple boundary-- 
 This is the epilogue.  It is also to be ignored.

使用 telnet 和 ESMTP 协议发送带有附件的电子邮件

答案1

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