diff --git a/mutt/account-gnu b/mutt/account-gnu
index e2e2007..35ae73b 100644
--- a/mutt/account-gnu
+++ b/mutt/account-gnu
@@ -11,6 +11,7 @@
 # should always go through fencepost.
 
 source ~/.mutt/account-personal
+set hostname="fencepost.gnu.org"
 
 set from="mikegerwitz@gnu.org"
 set smtp_url="smtp://mikegerwitz@fencepost.gnu.org:587"'
diff --git a/mutt/account-personal b/mutt/account-personal
index 0388ccc..84ee0bd 100644
--- a/mutt/account-personal
+++ b/mutt/account-personal
@@ -10,6 +10,7 @@
 # These are the settings for my general-purpose *@mikegerwitz.com e-mail.
 
 set from="mike@mikegerwitz.com"
+set hostname="mikegerwitz.com"
 
 set imap_user="mike@mikegerwitz.com"
 set imap_pass="`~/.mutt/get-passwd personal`"