diff --git a/net/ruby-net-imap/DESCR b/net/ruby-net-imap/DESCR
new file mode 100644
index 000000000000..da38ddee1cd9
--- /dev/null
+++ b/net/ruby-net-imap/DESCR
@@ -0,0 +1 @@
+Ruby client api for Internet Message Access Protocol.
diff --git a/net/ruby-net-imap/Makefile b/net/ruby-net-imap/Makefile
new file mode 100644
index 000000000000..9e3d97593d60
--- /dev/null
+++ b/net/ruby-net-imap/Makefile
@@ -0,0 +1,20 @@
+# $NetBSD: Makefile,v 1.6 2023/12/14 15:24:43 taca Exp $
+
+DISTNAME=	net-imap-0.3.7
+CATEGORIES=	net mail
+
+MAINTAINER=	pkgsrc-users@NetBSD.org
+HOMEPAGE=	https://github.com/ruby/net-imap
+COMMENT=	Ruby client api for Internet Message Access Protocol
+LICENSE=	2-clause-bsd OR ruby-license
+
+USE_LANGUAGES=	# none
+
+# This package is mainly for redmine51 on Ruby 3.1.
+# (Ruby 3.2 and later have required net-imap gem as standard gem.)
+RUBY_VERSIONS_ACCEPTED=	31
+
+.include "../../lang/ruby/rubyversion.mk"
+
+.include "../../lang/ruby/gem.mk"
+.include "../../mk/bsd.pkg.mk"
diff --git a/net/ruby-net-imap/PLIST b/net/ruby-net-imap/PLIST
new file mode 100644
index 000000000000..f13ad7764296
--- /dev/null
+++ b/net/ruby-net-imap/PLIST
@@ -0,0 +1,36 @@
+@comment $NetBSD: PLIST,v 1.4 2023/12/14 15:24:43 taca Exp $
+${GEM_HOME}/cache/${GEM_NAME}.gem
+${GEM_LIBDIR}/.github/dependabot.yml
+${GEM_LIBDIR}/.github/workflows/test.yml
+${GEM_LIBDIR}/.gitignore
+${GEM_LIBDIR}/Gemfile
+${GEM_LIBDIR}/LICENSE.txt
+${GEM_LIBDIR}/README.md
+${GEM_LIBDIR}/Rakefile
+${GEM_LIBDIR}/benchmarks/stringprep.yml
+${GEM_LIBDIR}/benchmarks/table-regexps.yml
+${GEM_LIBDIR}/docs/styles.css
+${GEM_LIBDIR}/lib/net/imap.rb
+${GEM_LIBDIR}/lib/net/imap/authenticators.rb
+${GEM_LIBDIR}/lib/net/imap/authenticators/cram_md5.rb
+${GEM_LIBDIR}/lib/net/imap/authenticators/digest_md5.rb
+${GEM_LIBDIR}/lib/net/imap/authenticators/login.rb
+${GEM_LIBDIR}/lib/net/imap/authenticators/plain.rb
+${GEM_LIBDIR}/lib/net/imap/authenticators/xoauth2.rb
+${GEM_LIBDIR}/lib/net/imap/command_data.rb
+${GEM_LIBDIR}/lib/net/imap/data_encoding.rb
+${GEM_LIBDIR}/lib/net/imap/errors.rb
+${GEM_LIBDIR}/lib/net/imap/flags.rb
+${GEM_LIBDIR}/lib/net/imap/response_data.rb
+${GEM_LIBDIR}/lib/net/imap/response_parser.rb
+${GEM_LIBDIR}/lib/net/imap/sasl.rb
+${GEM_LIBDIR}/lib/net/imap/sasl/saslprep.rb
+${GEM_LIBDIR}/lib/net/imap/sasl/saslprep_tables.rb
+${GEM_LIBDIR}/lib/net/imap/sasl/stringprep.rb
+${GEM_LIBDIR}/lib/net/imap/sasl/stringprep_tables.rb
+${GEM_LIBDIR}/net-imap.gemspec
+${GEM_LIBDIR}/rakelib/rdoc.rake
+${GEM_LIBDIR}/rakelib/rfcs.rake
+${GEM_LIBDIR}/rakelib/saslprep.rake
+${GEM_LIBDIR}/rakelib/string_prep_tables_generator.rb
+${GEM_HOME}/specifications/${GEM_NAME}.gemspec
diff --git a/net/ruby-net-imap/distinfo b/net/ruby-net-imap/distinfo
new file mode 100644
index 000000000000..9df1a9ab1aec
--- /dev/null
+++ b/net/ruby-net-imap/distinfo
@@ -0,0 +1,5 @@
+$NetBSD: distinfo,v 1.3 2023/12/14 15:24:43 taca Exp $
+
+BLAKE2s (net-imap-0.3.7.gem) = 7a2a6ec286c747da28b23a096262106d92edf4649700a1e9a493b8d7a2755f0b
+SHA512 (net-imap-0.3.7.gem) = 1ae502e94a3453669d7db63ac59ee3779f3dd2f715bfc8076c6d45f0595e001db2fbae7eab621eb12e2e78d2a570f821dbef657ff8a14d17ec947e56e6cd871e
+Size (net-imap-0.3.7.gem) = 77312 bytes