I just emerged sendmail-8.12.6-r1 and noticed the following errors: /usr/sbin/sendmail is owned by root.root (should be root.smmsp) /var/spool/clientmqueue is owned by root.root (should be root.smmsp) (otherwise, you won't be able to submit mail with sendmail, because the sendmail msp runs as smmsp:smmsp) /var/spool/mail has permissions 0755 (should be 1777)
I have updated net-mail/mailbase to 0.00-r5 which adds in a hook for creating /var/spool/mail with 1777 permissions.
sendmail-8.12.7 will be out very soon and I will update the new ebuild accordingly with the smmsp group fixes.
*** Bug 12807 has been marked as a duplicate of this bug. ***
/var/spool/clientmqueue is recomended: smmp.smmsp mode 0770 Recomedation from: "SENDMAIL INSTALLATION AND OPERATION GUIDE" 1.3.8
sendmail-8.12.7 is currently in portage. Marked unstable. This build has all known required changes. This should have only included the change from root:smmsp to smmsp:smmsp permissions on /var/spool/clientmqueue. Also the mailbase-0.00-r5 is still waiting to be unmasked which changes permissions on /var/spool/mail to 1777...
closing bug as changes are in portage.
*** Bug 14460 has been marked as a duplicate of this bug. ***