# @bypass_virus_checks_maps = (1);  # controls running of anti-virus code
# @bypass_spam_checks_maps  = (1);  # controls running of anti-spam code

First up, we can disable either virus or spam checking by uncommenting the following lines (by default, both virus and spam checking is enabled as the lines are commented out):


### /etc/amavisd.conf:
#
# To disable virus or spam checks, uncomment the following:
#
# @bypass_virus_checks_maps = (1);  # controls running of anti-virus code
# @bypass_spam_checks_maps  = (1);  # controls running of anti-spam code
# $bypass_decode_parts = 1;         # controls running of decoders & dearchivers

# Enable virus check.
@bypass_virus_checks_maps = (
   \%bypass_virus_checks,
   \@bypass_virus_checks_acl,
   $bypass_virus_checks_re,
   );

# Enable spam check.
@bypass_spam_checks_maps = (
    \%bypass_spam_checks,
    \@bypass_spam_checks_acl,
    $bypass_spam_checks_re,
    );

****************

 # don't perform spam/virus/header check.
    @bypass_spam_checks_maps => [1],
    #bypass_virus_checks_maps => [1],
    #bypass_header_checks_maps => [1],

****************

$sa_spam_subject_tag = '*SPAM* ';
$sa_tag_level_deflt  = -999;  # add spam info headers if at, or above that level
$sa_tag2_level_deflt = 5; # add 'spam detected' headers at that level
$sa_kill_level_deflt = 12; # triggers spam evasive actions
$sa_dsn_cutoff_level = 10;   # spam level beyond which a DSN is not sent

#@bypass_virus_checks_maps = (
#   \%bypass_virus_checks, \@bypass_virus_checks_acl, \$bypass_virus_checks_re);


#
# Default SPAM checking mode
# Please note, that anti-spam checking is DISABLED by
# default.
# If You wish to enable it, please uncomment the following lines:


@bypass_spam_checks_maps = (
   \%bypass_spam_checks, \@bypass_spam_checks_acl, \$bypass_spam_checks_re);

1;  # ensure a defined return