diff --git a/src/registrar/management/commands/send_domain_invitations.py b/src/registrar/management/commands/send_domain_invitations.py
index 68e805be9..603fbce3a 100644
--- a/src/registrar/management/commands/send_domain_invitations.py
+++ b/src/registrar/management/commands/send_domain_invitations.py
@@ -2,6 +2,7 @@
 
 import logging
 import copy
+import time
 
 from django.core.management import BaseCommand
 from registrar.models import TransitionDomain
@@ -65,8 +66,6 @@ class Command(BaseCommand):
             self.send_emails()
             logger.info("done sending emails")
 
-            self.update_domains_as_sent()
-
             logger.info("done sending emails and updating transition_domains")
         else:
             logger.info("not sending emails")
@@ -114,6 +113,9 @@ class Command(BaseCommand):
         if len(self.emails_to_send) > 0:
             for email_data in self.emails_to_send:
                 self.send_email(email_data)
+                # wait 1/10 second until sending the next email to keep us
+                # safely under a rate of 10 emails per second
+                time.sleep(0.1)
         else:
             logger.info("no emails to send")
 
@@ -143,11 +145,13 @@ class Command(BaseCommand):
             # to True
             for domain in email_data["domains"]:
                 self.domains_with_errors.append(domain)
-
-    def update_domains_as_sent(self):
-        """set email_sent to True in all transition_domains which have
-        been processed successfully"""
-        for transition_domain in self.transition_domains:
-            if transition_domain.domain_name not in self.domains_with_errors:
-                transition_domain.email_sent = True
-                transition_domain.save()
+        else:
+            # email was sent no exception, mark all these transition domains
+            # as email_sent.
+            this_email = email_data["email"]
+            for domain_name in email_data["domains"]:
+                # self.transition_domains is a queryset so we can sub-select
+                # from it and use the objects to mark them as sent
+                this_transition_domain = self.transition_domains.get(username=this_email, domain_name=domain_name)
+                this_transition_domain.email_sent = True
+                this_transition_domain.save()