使用命令行和 sendmail 发送带有多个附件的电子邮件

Question

是否可以使用uuencode 和sendmail 发送多个附件？

在脚本中，我有一个变量，其中包含需要附加到单个电子邮件的文件，例如：

$attachments=attachment_1.pdf attachment_2.pdf attachment_3.pdf attachment_4.pdf

还有一个$template 变量，例如：

$template="Subject: This is the subject
From: no-reply@domain.com
To: %s
Content-Type: text/plain

This is the body.
"

我想出了：

printf "$template" "$recipient" |
sendmail -oi -t

我必须在其中的某个地方附加 $attachments 变量中的所有内容？

Answer 1

uuencode 附件并通过sendmail 发送

发送 MIME 附件更好。
uuencode 在脚本中实现起来更简单但电子邮件某些客户端不支持它。

attachments="attachment_1.pdf attachment_2.pdf attachment_3.pdf attachment_4.pdf"
recipient='john.doe@example.net'

# () sub sub-shell should generate email headers and body for sendmail to send
(
# generate email headers and begin of the body asspecified by HERE document 
cat - <<END
Subject: This is the subject
From: no-reply@domain.com
To: $recipient
Content-Type: text/plain

This is the body.

END
# generate/append uuencoded attachments
for attachment in $attachments ; do
  uuencode $attachment $attachment
done
) | /usr/sbin/sendmail -i -- $recipient

Answer 2

不管怎样，mailx 也很有效。

mailx -s "Subject" -a attachment1 -a attachement2 -a attachment3 email.address@domain.com < /dev/null