diff --git a/build.sh b/build.sh
index 4a1e5ffa..f2a8f7bc 100755
--- a/build.sh
+++ b/build.sh
@@ -17,7 +17,7 @@ touch build/html/.nojekyll
 if [  -d "./../parsedmarc-docs" ]; then
   cp -rf build/html/* ../../parsedmarc-docs/
 fi
-sort.sh
+python3 sortmaps.py
 python3 tests.py
 rm -rf dist/ build/
-hatch build
\ No newline at end of file
+hatch build
diff --git a/parsedmarc/resources/maps/base_reverse_dns_map.csv b/parsedmarc/resources/maps/base_reverse_dns_map.csv
index 252246b1..07937853 100644
--- a/parsedmarc/resources/maps/base_reverse_dns_map.csv
+++ b/parsedmarc/resources/maps/base_reverse_dns_map.csv
@@ -44,6 +44,7 @@ airtel.in,Airtel,ISP
 airtelbroadband.in,Airtel,ISP
 ajusa.com,AJ-USA,Retail
 aknet.kg,AkNet,ISP
+akura.ne.jp,Akura,Logistics
 albatros.uz,Albatros Health Care,Healthcare
 alembic.co.in,Alembic Pharmaceuticals,Healthcare
 alestra.net.mx,Alestra,ISP
@@ -88,6 +89,7 @@ asl2.liguria.it,ASL2,Healthcare
 asmecal.it,ASMENET CALABRIA,Government
 assaytechnology.com,Assay Technology,Industrial
 assentportal.com,Assent,SaaS
+assp.org,American Society of Safety Professionals,Healthcare
 atmailcloud.com,atmail,Email Provider
 ats.ca,ATS Healthcare,Healthcare
 atw.ne.jp,ATW,Web Host
@@ -135,6 +137,7 @@ bluehost.com,Bluehost,Web Host
 bluemission.net,Blue Mission,Web Host
 bluesea.org,Blue Sea Foundation,Marketing
 bluetie.com,BlueTie,MSP
+bnpparibas.fr,Banque BNP Paribas,Finance
 bohc.co.jp,Benefit One Inc.,Retail
 bostrad.com,Bostrad Supply Chain Ltd,Logistics
 bov.com,Bank of Valletta,Finance
@@ -192,6 +195,7 @@ circleamedical.com,Circle A Medical,Healthcare
 cirrushosting.com,Cirrus Hosting,Web Host
 cisco.com,Cisco,Technology
 ckt.net,Craw-Kan Telephone Cooperative,ISP
+clarix.com,Clarix,MSP
 claro.com.do,Claro,ISP
 claro.com.ec,Claro,ISP
 claro.net.do,Mail2World,Email Provider
@@ -213,6 +217,7 @@ codetel.net.do,codetel.net.do,ISP
 coeficiente.net.mx,Coeficiente,ISP
 cogeco.ca,Cogeco,ISP
 cogeco.net,Cogoco,ISP
+collectivhosting.com,Collectiv,Web Host
 colocrossing.com,ColoCrossing,ISP
 combell.com,Combell,Web Host
 comcast.net,Comcast,ISP
@@ -220,6 +225,7 @@ comcastbusiness.net,Comcast Business,ISP
 comfori.com,Comfori,SaaS
 comline.com,West Coast Internet (WCI),ISP
 communitect.com,Solutionreach,SaaS
+complemar.com,Complemar,Logistics
 compliancearchitects.net,Compliance Aarchitects,Healthcare
 compu-type.net,Compu-Type,MSP
 computronics.com,Computronics,Technology
@@ -1322,6 +1328,7 @@ verizonbusiness.com,Verizon Business,ISP
 verointernet.com.br,Internet de Verdade,ISP
 versanet.de,1&1 Versatel,ISP
 vicc.co,Venco Imtiaz Contracting Co,Industrial
+victorkaiser.com,Global Transport,Logistics
 videotron.ca,Videotron,ISP
 videotron.com,Videotron,ISP
 viecuri.nl,VieCuri,Healthcare
@@ -1435,10 +1442,3 @@ zsttk.ru,TTK,ISP
 zyner.net,Zyner,Email Provider
 zyner.one,Zyner,Email Provider
 zyner.org,Zyner,Email Provider
-akura.ne.jp,Akura,Logistics
-assp.org,American Society of Safety Professionals,Healthcare
-complemar.com,Complemar,Logistics
-victorkaiser.com,Global Transport,Logistics
-bnpparibas.fr,Banque BNP Paribas,Finance
-clarix.com,Clarix,MSP
-collectivhosting.com,Collectiv,Web Host
diff --git a/parsedmarc/resources/maps/known_unknown_base_reverse_dns.txt b/parsedmarc/resources/maps/known_unknown_base_reverse_dns.txt
index 5dc01807..59a3fb87 100644
--- a/parsedmarc/resources/maps/known_unknown_base_reverse_dns.txt
+++ b/parsedmarc/resources/maps/known_unknown_base_reverse_dns.txt
@@ -1,10 +1,15 @@
 200.in-addr.arpa
+a7e.ru
+a94434500-blog.com
 adlucrumnewsletter.com
 admin.corpivensa.gob.ve
 aerospacevitro.us.com
 albagroup-eg.com
+anglishment.com
 anteldata.net.uy
+antis.edu
 antonaoll.com
+anviklass.org
 aosau.net
 arandomserver.com
 asmecam.it
@@ -12,24 +17,30 @@ b8sales.com
 bestinvestingtime.com
 biocorp.com
 bisno1.co.jp
+blguss.com
+bluenet.ch
 bluhosting.com
 bodiax.pp.ua
 bost-law.com
 brnonet.cz
 brushinglegal.de
+cavabeen.com
 christus.mx
 cloud-edm.com
+cloudaccess.net
 cloudlogin.co
 cnode.io
 commerceinsurance.com
 coolblaze.com
 cps.com.ar
+ctla.co.kr
 detrot.xyz
 digi.net.my
 dkginternet.com
 doorsrv.com
 dreamtechmedia.com
 ds.network
+emailgids.net
 emailperegrine.com
 epsilon-group.com
 eyecandyhosting.xyz
@@ -48,16 +59,21 @@ hostingmichigan.com
 hostname.localhost
 hostnetwork.com
 hostwhitelabel.com
+i-mecca.net
 idcfcloud.net
 immenzaces.com
+ip-147-135-108.us
+itsidc.com
 ivol.co
 jalanet.co.id
+jimishare.com
 kahlaa.com
 kbronet.com.tw
 kdnursing.org
 kitchenaildbd.com
 legenditds.com
 lighthouse-media.com
+llsend.com
 lohkal.com
 lonestarmm.net
 magnetmail.net
@@ -75,6 +91,7 @@ mysagestore.com
 ncport.ru
 nebdig.com
 neovet-base.ru
+netkl.org
 nic.name
 nidix.net
 ogicom.net
@@ -86,10 +103,12 @@ passionatesmiles.com
 planethoster.net
 pmnhost.net
 popiup.com
+ports.net
 prima.com.ar
 prima.net.ar
 proudserver.com
 qontenciplc.autos
+rapidns.com
 raxa.host
 sahacker-2020.com
 samsales.site
@@ -123,22 +142,3 @@ xsfati.us.com
 xspmail.jp
 zerowebhosting.net
 znlc.jp
-cavabeen.com
-llsend.com
-blguss.com
-itsidc.com
-anviklass.org
-a7e.ru
-antis.edu
-ctla.co.kr
-ip-147-135-108.us
-cloudaccess.net
-netkl.org
-bluenet.ch
-i-mecca.net
-emailgids.net
-jimishare.com
-anglishment.com
-ports.net
-rapidns.com
-a94434500-blog.com
diff --git a/parsedmarc/resources/maps/psl_overrides.txt b/parsedmarc/resources/maps/psl_overrides.txt
index 45789fa7..2fd7563b 100644
--- a/parsedmarc/resources/maps/psl_overrides.txt
+++ b/parsedmarc/resources/maps/psl_overrides.txt
@@ -1,6 +1,6 @@
+akura.ne.jp
 amazonaws.com
 cloudaccess.net
-linode.comn
 h-serv.co.uk
+linode.comn
 plesk.pages
-akura.ne.jp
diff --git a/sort.sh b/sort.sh
deleted file mode 100755
index b8b92d47..00000000
--- a/sort.sh
+++ /dev/null
@@ -1,5 +0,0 @@
-#!/usr/bin/env bash
-
-sort -o "parsedmarc/resources/maps/known_unknown_base_reverse_dns.txt" "parsedmarc/resources/maps/known_unknown_base_reverse_dns.txt"
-sort -o "parsedmarc/resources/maps/public_suffix_overrides.txt" "parsedmarc/resources/maps/public_suffix_overrides.txt"
-./sortmaps.py
diff --git a/sortmaps.py b/sortmaps.py
index 4653f643..35b599b5 100755
--- a/sortmaps.py
+++ b/sortmaps.py
@@ -23,8 +23,16 @@ def sort_csv(filepath, column=0):
         writer.writerow(header)
         writer.writerows(sorted_rows)
 
-def sort_list_file(filepath, lowercase=True, strip=True, deduplicate=True,
-                   remove_blank_lines=True, ending_newline=True, newline="\n"):
+
+def sort_list_file(
+    filepath,
+    lowercase=True,
+    strip=True,
+    deduplicate=True,
+    remove_blank_lines=True,
+    ending_newline=True,
+    newline="\n",
+):
     with open(filepath, mode="r", newline=newline) as infile:
         lines = infile.readlines()
         for i in range(len(lines)):
@@ -39,14 +47,13 @@ def sort_list_file(filepath, lowercase=True, strip=True, deduplicate=True,
                 lines.remove("")
         lines = sorted(lines)
         if ending_newline:
-            if lines[-1] != newline: 
-                lines.append(newline)
+            if lines[-1] != "":
+                lines.append("")
     with open(filepath, mode="w", newline=newline) as outfile:
-        outfile.write("\n".join(newline))
-        outfile.write(newline)
+        outfile.write("\n".join(lines))
 
 
 for csv_file in map_files:
     sort_csv(os.path.join(maps_dir, csv_file))
 for list_file in list_files:
-    sort_list_file( os.path.join(maps_dir, list_file))
+    sort_list_file(os.path.join(maps_dir, list_file))