On Thu, 2011-06-09 at 17:20 -0300, Thiago Henrique wrote: > > Jun 9 18:49:37 box7 dovecot: lmtp(10734, user at server.com): Fatal: > execv(/usr/sbin/sendmail) failed: Permission denied SELinux maybe preventing this? An alternative would be to use the new submission_host parameter.