: $self->{format} =~ /opendocument/i ? ".odt"
: $self->{format} =~ /html/i ? ".html"
: "");
- $attachment_filename = lc $main::locale->quote_special_chars('filenames', $attachment_filename);
- $attachment_filename =~ s/ /_/g;
+ $attachment_filename = $main::locale->quote_special_chars('filenames', $attachment_filename);
+ $attachment_filename =~ s|[\s/\\]+|_|g;
} else {
$attachment_filename = "";
}