diff --git a/email_dns.py b/email_dns.py
index 3f9c9fb..61f2e35 100755
--- a/email_dns.py
+++ b/email_dns.py
@@ -45,8 +45,13 @@ dkim_selectors = { # <selector>._domainkey.<domain>
     'mandrill': [
         'mandrill'
     ],
+    # Mailgun (Very generic, thank you, Mailgun)
     'mailgun': [
-        'pic', 'smtp', # Mailgun (Very generic, thank you, Mailgun)
+        'pic', 'smtp',
+    ],
+    # Bloomerang (using SendGrid backend)
+    'bloomerang': [
+        'blm', 'blm2',
     ],
     'bullhorn': [
         'bh'
@@ -68,7 +73,7 @@ def process_args(args: list) -> list:
     
     return domains
 
-def safe_resolve(name: str, type: str) -> resolver.Answer:
+def safe_resolve(name: str, type: str) -> resolver.Answer | None:
     try:
         answer = resolver.resolve(name, type)
         return answer
@@ -79,7 +84,9 @@ def safe_resolve(name: str, type: str) -> resolver.Answer:
         return None
 
 class Domain:
+
     # def __init__(self, name: str, mx: str = [], spf: str = None, dkim: list = [], dmarc: str = None) -> None:
+    
     def __init__(self, name: str) -> None:
         self.name = name
         self.mx = []
@@ -104,7 +111,7 @@ class Domain:
             for a in answer:
                 if str(a).lower().find('v=spf1') != -1:
                     self.spf = str(a).replace('"', '')
-                    # TODO: Recurse through includes
+                    # TODO: Recurse through includes?
                     # matches = re.search(r'(?:include:)(.*)(?=\s)', str(a).lower())
                     # domains = set()
                     # if matches: