emerging sendmail with mailwrapper support gives a non-functional sendmail. Looking at the ebuild there is an obvious problem: rm ${D}/usr/bin/mailq rm ${D}/usr/bin/newaliases mailwrapper does not re-create these links so there is no way to use sendmail. Reproducible: Always mail-mta/sendmail-8.13.7-r1 net-mail/mailwrapper-0.2.1
This bug is invalid. We remove mailq and newaliases symbolic links intentionally for having a working and non-conflicting mailwrapper. Check your /etc/mail/mailer.conf configuration. You should change it accordingly (there's a commented example) with something like this: # Execute the "real" sendmail program, named /usr/sbin/sendmail # sendmail /usr/sbin/sendmail.sendmail send-mail /usr/sbin/sendmail.sendmail mailq /usr/sbin/sendmail.sendmail newaliases /usr/sbin/sendmail.sendmail hoststat /usr/sbin/sendmail.sendmail purgestat /usr/sbin/sendmail.sendmail