I am running Gitea on Ubuntu 16.04 and trying to enable email notification. In app.ini I configured it to use sendmail by setting the mailer section as
ENABLED = true
FROM = firstname.lastname@example.org
MAILER_TYPE = sendmail
SENDMAIL_PATH = /usr/sbin/sendmail
But when I clicked on the “Send Testing Email” on the Site Administration > Configuration page, I got the following error message:
Failed to send a testing email to 'email@example.com': gomail: could not send email 1: fork/exec /usr/sbin/sendmail: no such file or directory
I’ve verified that /usr/sbin/sendmail exists and is working fine. Does anyone have suggestion on what might have caused this error?