# backwards compatibility:
$ibx->{inboxdir} //= $self->{"$pfx.mainrepo"};
-
+ if (($ibx->{inboxdir} // '') =~ /\n/s) {
+ warn "E: `$ibx->{inboxdir}' must not contain `\\n'\n";
+ return;
+ }
foreach my $k (qw(obfuscate)) {
my $v = $self->{"$pfx.$k"};
defined $v or next;