diff --git a/options/locale/locale_en-US.ini b/options/locale/locale_en-US.ini
index 12c4197c67..2e4d154b7f 100644
--- a/options/locale/locale_en-US.ini
+++ b/options/locale/locale_en-US.ini
@@ -473,12 +473,10 @@ link_not_working_do_paste = Does the link not work? Try copying and pasting it i
 hi_user_x = Hi <b>%s</b>,
 
 activate_account = Please activate your account
-activate_account.title = %s, please activate your account
 activate_account.text_1 = Hi <b>%[1]s</b>, thanks for registering at %[2]s!
 activate_account.text_2 = Please click the following link to activate your account within <b>%s</b>:
 
 activate_email = Verify your email address
-activate_email.title = %s, please verify your email address
 activate_email.text = Please click the following link to verify your email address within <b>%s</b>:
 
 admin.new_user.subject = New user %s just signed up
@@ -486,13 +484,11 @@ admin.new_user.user_info = User information
 admin.new_user.text = Please <a href="%s">click here</a> to manage this user from the admin panel.
 
 register_notify = Welcome to Forgejo
-register_notify.title = %[1]s, welcome to %[2]s
 register_notify.text_1 = this is your registration confirmation email for %s!
 register_notify.text_2 = You can sign into your account using your username: %s
 register_notify.text_3 = If someone else made this account for you, you will need to <a href="%s">set your password</a> first.
 
 reset_password = Recover your account
-reset_password.title = %s, we have received a request to recover your account
 reset_password.text = If this was you, please click the following link to recover your account within <b>%s</b>:
 
 register_success = Registration successful
diff --git a/services/mailer/mail_test.go b/services/mailer/mail_test.go
index d87c57ffe7..528b11f16b 100644
--- a/services/mailer/mail_test.go
+++ b/services/mailer/mail_test.go
@@ -36,7 +36,6 @@ const bodyTpl = `
 <html>
 <head>
 	<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
-	<title>{{.Subject}}</title>
 </head>
 
 <body>
diff --git a/templates/mail/auth/activate.tmpl b/templates/mail/auth/activate.tmpl
index b1bb4cb463..eb7ea5a8ec 100644
--- a/templates/mail/auth/activate.tmpl
+++ b/templates/mail/auth/activate.tmpl
@@ -3,7 +3,6 @@
 <head>
 	<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
 	<meta name="format-detection" content="telephone=no,date=no,address=no,email=no,url=no">
-	<title>{{.locale.Tr "mail.activate_account.title" (.DisplayName|DotEscape)}}</title>
 </head>
 
 {{$activate_url := printf "%suser/activate?code=%s" AppUrl (QueryEscape .Code)}}
diff --git a/templates/mail/auth/activate_email.tmpl b/templates/mail/auth/activate_email.tmpl
index 3d32f80a4e..9ca54d3084 100644
--- a/templates/mail/auth/activate_email.tmpl
+++ b/templates/mail/auth/activate_email.tmpl
@@ -3,7 +3,6 @@
 <head>
 	<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
 	<meta Name="format-detection" content="telephone=no,date=no,address=no,email=no,url=no">
-	<title>{{.locale.Tr "mail.activate_email.title" (.DisplayName|DotEscape)}}</title>
 </head>
 
 {{$activate_url := printf "%suser/activate_email?code=%s&email=%s" AppUrl (QueryEscape .Code) (QueryEscape .Email)}}
diff --git a/templates/mail/auth/register_notify.tmpl b/templates/mail/auth/register_notify.tmpl
index 62dbf7d927..d3a668b0ef 100644
--- a/templates/mail/auth/register_notify.tmpl
+++ b/templates/mail/auth/register_notify.tmpl
@@ -3,7 +3,6 @@
 <head>
 	<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
 	<meta name="format-detection" content="telephone=no,date=no,address=no,email=no,url=no">
-	<title>{{.locale.Tr "mail.register_notify.title" (.DisplayName|DotEscape) AppName}}</title>
 </head>
 
 {{$set_pwd_url := printf "%[1]suser/forgot_password" AppUrl}}
diff --git a/templates/mail/auth/reset_passwd.tmpl b/templates/mail/auth/reset_passwd.tmpl
index 55b1ecec3f..b85b770d87 100644
--- a/templates/mail/auth/reset_passwd.tmpl
+++ b/templates/mail/auth/reset_passwd.tmpl
@@ -3,7 +3,6 @@
 <head>
 	<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
 	<meta name="format-detection" content="telephone=no,date=no,address=no,email=no,url=no">
-	<title>{{.locale.Tr "mail.reset_password.title" (.DisplayName|DotEscape)}}</title>
 </head>
 
 {{$recover_url := printf "%suser/recover_account?code=%s" AppUrl (QueryEscape .Code)}}
diff --git a/templates/mail/issue/assigned.tmpl b/templates/mail/issue/assigned.tmpl
index 5720319ee8..f8ad62ae56 100644
--- a/templates/mail/issue/assigned.tmpl
+++ b/templates/mail/issue/assigned.tmpl
@@ -5,7 +5,6 @@
 		.footer { font-size:small; color:#666;}
 	</style>
 	<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
-	<title>{{.Subject}}</title>
 </head>
 
 {{$repo_url := HTMLFormat "<a href='%s'>%s</a>" .Issue.Repo.HTMLURL .Issue.Repo.FullName}}
diff --git a/templates/mail/issue/default.tmpl b/templates/mail/issue/default.tmpl
index 395b118d3e..a94a10e27b 100644
--- a/templates/mail/issue/default.tmpl
+++ b/templates/mail/issue/default.tmpl
@@ -2,7 +2,6 @@
 <html>
 <head>
 	<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
-	<title>{{.Subject}}</title>
 
 	<style>
 		blockquote { padding-left: 1em; margin: 1em 0; border-left: 1px solid grey; color: #777}
diff --git a/templates/mail/notify/admin_new_user.tmpl b/templates/mail/notify/admin_new_user.tmpl
index 613c58194a..655c7ce5c5 100644
--- a/templates/mail/notify/admin_new_user.tmpl
+++ b/templates/mail/notify/admin_new_user.tmpl
@@ -2,7 +2,6 @@
 <html>
 <head>
 	<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
-	<title>{{.Subject}}</title>
 
 	<style>
 		blockquote { padding-left: 1em; margin: 1em 0; border-left: 1px solid grey; color: #777}
diff --git a/templates/mail/notify/collaborator.tmpl b/templates/mail/notify/collaborator.tmpl
index 9810c70984..6108d40e61 100644
--- a/templates/mail/notify/collaborator.tmpl
+++ b/templates/mail/notify/collaborator.tmpl
@@ -5,7 +5,6 @@
 		.footer { font-size:small; color:#666;}
 	</style>
 	<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
-	<title>{{.Subject}}</title>
 </head>
 
 <body>
diff --git a/templates/mail/notify/repo_transfer.tmpl b/templates/mail/notify/repo_transfer.tmpl
index 8c8b276484..bc4c4b3660 100644
--- a/templates/mail/notify/repo_transfer.tmpl
+++ b/templates/mail/notify/repo_transfer.tmpl
@@ -2,7 +2,6 @@
 <html>
 <head>
 	<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
-	<title>{{.Subject}}</title>
 </head>
 
 {{$url := HTMLFormat "<a href='%[1]s'>%[2]s</a>" .Link .Repo}}
diff --git a/templates/mail/release.tmpl b/templates/mail/release.tmpl
index 92af3216bb..8c01aec209 100644
--- a/templates/mail/release.tmpl
+++ b/templates/mail/release.tmpl
@@ -2,7 +2,6 @@
 <html>
 <head>
 	<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
-	<title>{{.Subject}}</title>
 
 	<style>
 		blockquote { padding-left: 1em; margin: 1em 0; border-left: 1px solid grey; color: #777}