Install this version:
emerge -a =dev-perl/Mail-Builder-Simple-0.160.0
If this version is masked, you can unmask it using the autounmask tool or standard emerge options:
autounmask =dev-perl/Mail-Builder-Simple-0.160.0
Or alternatively:
emerge --autounmask-write -a =dev-perl/Mail-Builder-Simple-0.160.0
# Copyright 1999-2021 Gentoo Authors
# Distributed under the terms of the GNU General Public License v2
EAPI=8
DIST_AUTHOR=TEDDY
DIST_VERSION=0.16
inherit perl-module
DESCRIPTION="Send UTF-8 HTML and text email using templates"
SLOT="0"
KEYWORDS="~amd64 ~x86"
RDEPEND="
>=dev-perl/Mail-Builder-1.120.0
dev-perl/Email-Sender
dev-perl/Email-Valid
dev-perl/Config-Any
dev-perl/Config-General
dev-perl/Exception-Died
>=dev-perl/MailTools-2.40.0
dev-perl/Email-MessageID
dev-perl/MIME-tools
dev-perl/HTML-Template
dev-perl/Template-Toolkit
"
BDEPEND="${RDEPEND}
test? (
dev-perl/Test-Pod
dev-perl/Test-Pod-Coverage
)"
>=dev-perl/Mail-Builder-1.120.0 dev-perl/Email-Sender dev-perl/Email-Valid dev-perl/Config-Any dev-perl/Config-General dev-perl/Exception-Died >=dev-perl/MailTools-2.40.0 dev-perl/Email-MessageID dev-perl/MIME-tools dev-perl/HTML-Template dev-perl/Template-Toolkit
>=dev-perl/Mail-Builder-1.120.0 dev-perl/Email-Sender dev-perl/Email-Valid dev-perl/Config-Any dev-perl/Config-General dev-perl/Exception-Died >=dev-perl/MailTools-2.40.0 dev-perl/Email-MessageID dev-perl/MIME-tools dev-perl/HTML-Template dev-perl/Template-Toolkit test? ( dev-perl/Test-Pod dev-perl/Test-Pod-Coverage )