Description of problem:
SELinux is preventing sendmail from 'read' accesses on the carpeta .esmtp_queue.

*****  Plugin catchall (100. confidence) suggests   **************************

Si cree que de manera predeterminada se debería permitir a sendmail el acceso read sobre  .esmtp_queue directory.     
Then debería reportar esto como un error.
Puede generar un módulo de política local para permitir este acceso.
Do
permita el acceso temporalmente ejecutando:
# ausearch -c 'sendmail' --raw | audit2allow -M mi-sendmail
# semodule -X 300 -i mi-sendmail.pp

Additional Information:
Source Context                system_u:system_r:fsdaemon_t:s0
Target Context                system_u:object_r:mail_home_rw_t:s0
Target Objects                .esmtp_queue [ dir ]
Source                        sendmail
Source Path                   sendmail
Port                          <Desconocido>
Host                          (removed)
Source RPM Packages           
Target RPM Packages           
Policy RPM                    selinux-policy-3.14.1-32.fc28.noarch
Selinux Enabled               True
Policy Type                   targeted
Enforcing Mode                Enforcing
Host Name                     (removed)
Platform                      Linux (removed) 4.17.2-200.fc28.x86_64 #1 SMP Mon
                              Jun 18 20:09:31 UTC 2018 x86_64 x86_64
Alert Count                   10
First Seen                    2018-06-24 00:31:40 -04
Last Seen                     2018-06-28 12:07:07 -04
Local ID                      92da9c4d-4965-41e7-84d8-9e6bfe17095c

Raw Audit Messages
type=AVC msg=audit(1530202027.696:123): avc:  denied  { read } for  pid=1201 comm="sendmail" name=".esmtp_queue" dev="dm-0" ino=533069 scontext=system_u:system_r:fsdaemon_t:s0 tcontext=system_u:object_r:mail_home_rw_t:s0 tclass=dir permissive=0


Hash: sendmail,fsdaemon_t,mail_home_rw_t,dir,read

Version-Release number of selected component:
selinux-policy-3.14.1-32.fc28.noarch

Additional info:
component:      selinux-policy
reporter:       libreport-2.9.5
hashmarkername: setroubleshoot
kernel:         4.17.2-200.fc28.x86_64
type:           libreport