Postfix: /usr/sbin/sendmail: No such file or directory - why?

I am trying to tát get postfix working, and when I test it using mail user I enter the subject, message, ect and get the following error:

mail: /usr/sbin/sendmail: No such tệp tin or directory
Can't send mail: sendmail process failed

Why is it talking about sendmail? I deleted that a long time ago and am using postfix. Is it still hanging around somewhere and the mail command thinks it should be using sendmail?

If you tự not have /usr/sbin/sendmail, kiểm tra if after installing postfix package, you have:

/usr/sbin/sendmail.postfix

If you tự, simply make a symlink:

ln -s /usr/sbin/sendmail.postfix /usr/sbin/sendmail

I have met the same problem, and the following cmd fix it,

sudo apt-get install mailutils

I had a situation in linux machines at my work place where accidently emptied the mailq (mta-mail) tệp tin with echo > instead of postgress -d all commands and my it was a scare . Never going to tát touch binaries lượt thích that :)

SO in the system usually i seen they use many softlinks to tát liên kết mailq, sendmai, to tát finally on the sendmail.postfix

I got a solution by installing sendmail package again.

im on Centos so yum install sendmail THis site helped bu out with steps manual https://docs.bitnami.com/aws/apps/oxid/troubleshooting/send-mail/

For Debian 12 admin user I had to tát add /usr/sbin to tát it's path:

Add this to tát the bottom of ~/.profile:

if [ -d "/usr/sbin" ] ; then
    PATH="/usr/sbin:$PATH"
fi

$ source ~/.profile # or logout / login.