/usr/share/perl5/Email/Sender/ is in libemail-sender-perl 1.300016-1.
This file is owned by root:root, with mode 0o755.
..
/usr/share/perl5/Email/Sender/Failure/
/usr/share/perl5/Email/Sender/Failure.pm
/usr/share/perl5/Email/Sender/Failure/Multi.pm
/usr/share/perl5/Email/Sender/Failure/Permanent.pm
/usr/share/perl5/Email/Sender/Failure/Temporary.pm
/usr/share/perl5/Email/Sender/Manual/
/usr/share/perl5/Email/Sender/Manual.pm
/usr/share/perl5/Email/Sender/Manual/QuickStart.pm
/usr/share/perl5/Email/Sender/Role/
/usr/share/perl5/Email/Sender/Role/CommonSending.pm
/usr/share/perl5/Email/Sender/Role/HasMessage.pm
/usr/share/perl5/Email/Sender/Simple.pm
/usr/share/perl5/Email/Sender/Success/
/usr/share/perl5/Email/Sender/Success.pm
/usr/share/perl5/Email/Sender/Success/Partial.pm
/usr/share/perl5/Email/Sender/Transport/
/usr/share/perl5/Email/Sender/Transport.pm
/usr/share/perl5/Email/Sender/Transport/DevNull.pm
/usr/share/perl5/Email/Sender/Transport/Failable.pm
/usr/share/perl5/Email/Sender/Transport/Maildir.pm
/usr/share/perl5/Email/Sender/Transport/Mbox.pm
/usr/share/perl5/Email/Sender/Transport/Print.pm
/usr/share/perl5/Email/Sender/Transport/SMTP/
/usr/share/perl5/Email/Sender/Transport/SMTP.pm
/usr/share/perl5/Email/Sender/Transport/SMTP/Persistent.pm
/usr/share/perl5/Email/Sender/Transport/Sendmail.pm
/usr/share/perl5/Email/Sender/Transport/Test.pm
/usr/share/perl5/Email/Sender/Transport/Wrapper.pm
/usr/share/perl5/Email/Sender/Util.pm