- my $sock = $self->{sock} or return;
- return \"-ERR TLS already enabled\r\n" if $sock->can('stop_SSL');
- my $opt = $self->{pop3d}->{accept_tls} or
+ ($self->{sock} // return)->can('stop_SSL') and
+ return \"-ERR TLS already enabled\r\n";
+ $self->{pop3d}->{ssl_ctx_opt} or