> On Feb 4, 2026, at 8:43 AM, Dr Rainer Woitok <[email protected]> wrote: > > Greetings,
Hi! > > by default package "app-admin/sudo" is built with USE flag "+sendmail", > and this USE flag is described as "Allow sudo to send emails with send- > mail". Up to now I tried in vain to find information in the Gentoo Wiki > where to configure target mail addresses and conditions triggering mails > to be sent. This page[0] briefly describes how to setup email logging for sudo. ‘man 5 sudoers’ is more comprehensive, but also more difficult to parse the relevant information from. > It's also unclear whether building "app-admin/sudo" with > USE flag "-sendmail" will cause it to just use another programme for > sending mails or won't send any mails at all. As I understand it, despite the name, the sendmail USE flag just ensures that virtual/mta is satisfied. So if you have Sendmail, Postfix, Exim or any other MTA configured and running it will use it for mail transport if ’sendmail’ USE flag is set. If sendmail USE flag is NOT set, then sudo will not be built with the ability to do email logging. > > Any pointers and clarifications welcome :-) > > Sincerely, > Rainer > Regards, D [0] https://www.cyberciti.biz/faq/sudo-send-e-mail-sudo-log-file/
