验证邮件状态Bash脚本

Question

I' doing something like this:

echo "TEST MAIL" | mail -s "subject" "SOME@MAIL.COM"

it's send ok! but i must validate in the shell script if the mail was sent or not.

I don't find some way to validate if the mail was sent or not.

EDIT:

The only validation that i have is if the return value in the mail app is 0

if [ "$?" = "0" ]; then
    echo "Mail enviado a: $destinatarios"

else
    echo "Mail NO enviado a: $destinatarios"
fi

Answer 1

You should define what "sent" means for you. Return status of "mail" specifies only if the message was accepted by local MTA or not.

There are still many things that may happen to prevent delivery to the final recipient. Beginning with there being no network connection on the local machine and ending with the recipient overlooking your message in his/her Inbox.

Mail delivery is asynchronous. There are mechanisms for requesting delivery and read receipts, which seldom work. You may have better luck processing non-delivery reports. However, all of them may take arbitrary time to arrive.

For that matter, I would say zero exit status of "mail" is as good an indication of a successfully-sent message as you can get with reasonable effort.

Answer 2

如果您将电子邮件发送到应用程序内部，则可以将目标应用程序修改为“答复”，否则据我所知没有简单的方法.....