Question

我在使用attachemnt发送html邮件时遇到问题。我可以发送邮件附件（纯文本）使用mailx -s和uuencode命令以及html邮件没有附件使用sendmail选项。

但是我无法发送html邮件和附件。其中任何一个正在工作（html邮件或附件）

以下是我尝试过的不同方法。你能帮我解决一下吗？

1)   Failed because of illegal option base64

#!/usr/bin/ksh

export MAILTO="abc@abc.com"
export SUBJECT="Mail Subject"
export BODY="card_summary_mail.html"
export ATTACH="query5_result.csv"
(
 echo "To: $MAILTO"
 echo "Subject: $SUBJECT"
 echo "MIME-Version: 1.0"
 echo 'Content-Type: multipart/mixed; boundary="-q1w2e3r4t5"'
 echo
 echo '---q1w2e3r4t5'
 echo "Content-Type: text/html"
 echo "Content-Disposition: inline"
 cat $BODY
 echo '---q1w2e3r4t5'
 echo 'Content-Type: application; name="'$(basename $ATTACH)'"'
 echo "Content-Transfer-Encoding: base64"
 echo 'Content-Disposition: attachment; filename="'$(basename $ATTACH)'"'
 uuencode --base64 $ATTACH $(basename $ATTACH)
 echo '---q1w2e3r4t5--'
) | /usr/lib/sendmail $MAILTO

2)  
cib-sokay2{u384283}323:cat test_html2.sh
{
  uuencode query5_result.csv query5_result.csv > attachment.txt
  cat mail.html attachment.txt > attachment2.html
} | /usr/lib/sendmail -t abc@abc.com

-----------------------------------------------

3)
cib-sokay2{u384283}324:cat test_html3.sh
export MAILTO="abc@abc.com"
export CONTENT="mail.html"
export CONTENT_F="attachment.txt"
export SUBJECT="TEST EMAIL: TESTING HTML"


BOUNDARY='=== This is the boundary between parts of the message. ==='

{
print -  "From: Someone <$MAILFROM>"
print -  "To: Someone <${MAILTO}>"
print -  'Subject:' $SUBJECT
print -  'MIME-Version: 1.0'
print -  'Content-Type: MULTIPART/MIXED; '
print -  '    BOUNDARY='\"$BOUNDARY\"
print -
print -  '        This message is in MIME format.  But if you can see this,'
print -  "        you aren't using a MIME aware mail program.  You shouldn't "
print -  '        have too many problems because this message is entirely in'
print -  '        ASCII and is designed to be somewhat readable with old '
print -  '        mail software.'
print -
print -  "--${BOUNDARY}"
print -  'Content-Type: TEXT/PLAIN; charset=US-ASCII'
print -
cat $CONTENT
print -
print -
print -  "--${BOUNDARY}"
print -  'Content-Type: TEXT/PLAIN; charset=US-ASCII; name='${CONTENT}
print -  'Content-Disposition: attachment;   filename='${CONTENT_F}
print -
cat ${CONTENT}
print -
print -  "--${BOUNDARY}--"
} | /usr/lib/sendmail ${MAILTO}

------------------------------------------------------------


cib-sokay2{u384283}326:cat test_html4.sh
#!/usr/bin/ksh

export MAILTO="abc@abc.com"
export CONTENT="mail.html"
export SUBJECT="subject of email"
(
echo "Subject: $SUBJECT"
# This appears in the mail body
cat $CONTENT
# The next line creates the attachment with a suitable extension to read
# with Windows notepad
unix2dos "attachment.txt" | uuencode myattach.txt
echo "."
) | /usr/lib/sendmail $MAILTO

-------------------------------------

Answer 1

你的第一次尝试相当接近。您的第二次尝试似乎是将某些内容写入文件然后放弃，并将空输入提供给sendmail。你的第三次尝试在MIME边界有一个严重的错误和一些特点（为什么你把相同的内容两次？），但基本上与第一次非常相似。你的第四次尝试看起来相当合理但过时，但由于对事物需要格式化的错误假设（例如，如果$CONTENT不是以空行开头，你的内容会变得轻而易举，可能会失败）在邮件标题中，创建非法标题并可能被拒绝）。

假设您的系统上有一个命令base64（自6.0, almost ten years back以来它包含在GNU Coreutils中），只需将uuencode调用替换为该命令，并修复各种次要格式错误。这是一个重构的脚本，希望能够捕获大部分脚本。

#!/bin/sh

# No need to export anything, we are not passing these to child processes    
MAILTO="abc@abc.com"
SUBJECT="Mail Subject"
BODY="card_summary_mail.html"
ATTACH="query5_result.csv"

( cat <<____HERE
To: $MAILTO
Subject: $SUBJECT
MIME-Version: 1.0
Content-Type: multipart/mixed; boundary="-q1w2e3r4t5"

... You could put a MIME preamble here but nobody ever reads it ...

---q1w2e3r4t5
Content-Type: text/html
Content-Disposition: inline
X-Notice: you need an empty line before the body here:

____HERE
 cat "$BODY"
 # also notice empty line at beginning of next snippet
 cat <<____THERE

---q1w2e3r4t5
X-Notice: just "application" is incompletely specified
Content-Type: application/octet-stream; name="$(basename "$ATTACH")"
Content-Transfer-Encoding: base64
Content-Disposition: attachment; filename="$(basename "$ATTACH")"
X-Notice: another empty line

____THERE

 base64 "$ATTACH"

 echo '---q1w2e3r4t5--'
) | /usr/lib/sendmail "$MAILTO"

但是，组装自己的MIME结构会非常快 - 我建议寻找具有适当附件支持的命令行MUA（mutt很受欢迎;一些现代mail / {{1克隆有类似的设施，但它不是标准的。）

此外，这里没有mailx特定的内容，所以我改变了shebang。

Answer 2

Your first attempt is almost correct. Just replace --base64 by -m as shown below :

#!/usr/bin/ksh

export MAILTO="abc@abc.com"
export SUBJECT="Mail Subject"
export BODY="card_summary_mail.html"
export ATTACH="query5_result.csv"
(
 echo "To: $MAILTO"
 echo "Subject: $SUBJECT"
 echo "MIME-Version: 1.0"
 echo 'Content-Type: multipart/mixed; boundary="-q1w2e3r4t5"'
 echo
 echo '---q1w2e3r4t5'
 echo "Content-Type: text/html"
 echo "Content-Disposition: inline"
 cat $BODY
 echo '---q1w2e3r4t5'
 echo 'Content-Type: application; name="'$(basename $ATTACH)'"'
 echo "Content-Transfer-Encoding: base64"
 echo 'Content-Disposition: attachment; filename="'$(basename $ATTACH)'"'
 uuencode -m $ATTACH $(basename $ATTACH)
 echo '---q1w2e3r4t5--'
) | /usr/lib/sendmail $MAILTO

需要在unix中发送带附件的html邮件

2 个答案: