diff --git a/src/mail_templates/app_down.ejs b/src/mail_templates/app_down.ejs
index 95da48202..75b30127b 100644
--- a/src/mail_templates/app_down.ejs
+++ b/src/mail_templates/app_down.ejs
@@ -14,6 +14,8 @@ To resolve this, you can try the following:
 
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+Sent at: <%= new Date().toUTCString() %>
+
 <% } else { %>
 
 <% } %>
diff --git a/src/mail_templates/app_update_available.ejs b/src/mail_templates/app_update_available.ejs
index 38bfafbb0..ad83aa6ab 100644
--- a/src/mail_templates/app_update_available.ejs
+++ b/src/mail_templates/app_update_available.ejs
@@ -12,6 +12,8 @@ Changes:
 
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+Sent at: <%= new Date().toUTCString() %>
+
 <% } else { %>
 
 <% } %>
diff --git a/src/mail_templates/backup_failed.ejs b/src/mail_templates/backup_failed.ejs
index 3073a5772..ca1e5c997 100644
--- a/src/mail_templates/backup_failed.ejs
+++ b/src/mail_templates/backup_failed.ejs
@@ -13,6 +13,8 @@ creating a backup of <%= fqdn %> has failed.
 
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+Sent at: <%= new Date().toUTCString() %>
+
 <% } else { %>
 
 <% } %>
diff --git a/src/mail_templates/certificate_renewal_error.ejs b/src/mail_templates/certificate_renewal_error.ejs
index c7937fba6..28a36e3a6 100644
--- a/src/mail_templates/certificate_renewal_error.ejs
+++ b/src/mail_templates/certificate_renewal_error.ejs
@@ -2,7 +2,7 @@
 
 Dear Cloudron Admin,
 
-the certificate for <%= domain %> could not be renewed.
+The certificate for <%= domain %> could not be renewed.
 
 -------------------------------------
 
@@ -13,6 +13,8 @@ the certificate for <%= domain %> could not be renewed.
 
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+Sent at: <%= new Date().toUTCString() %>
+
 <% } else { %>
 
 <% } %>
diff --git a/src/mail_templates/oom_event.ejs b/src/mail_templates/oom_event.ejs
index 7f3b57f48..966a520f2 100644
--- a/src/mail_templates/oom_event.ejs
+++ b/src/mail_templates/oom_event.ejs
@@ -18,6 +18,8 @@ Please see some excerpt of the logs below.
 
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+Sent at: <%= new Date().toUTCString() %>
+
 <% } else { %>
 
 <% } %>
diff --git a/src/mail_templates/out_of_disk_space.ejs b/src/mail_templates/out_of_disk_space.ejs
index 694b8715e..53f60f666 100644
--- a/src/mail_templates/out_of_disk_space.ejs
+++ b/src/mail_templates/out_of_disk_space.ejs
@@ -15,6 +15,8 @@ Disk space logs are attached.
 
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+Sent at: <%= new Date().toUTCString() %>
+
 <% } else { %>
 
 <% } %>
diff --git a/src/mail_templates/unexpected_exit.ejs b/src/mail_templates/unexpected_exit.ejs
index 67356d62e..ac33d22cf 100644
--- a/src/mail_templates/unexpected_exit.ejs
+++ b/src/mail_templates/unexpected_exit.ejs
@@ -15,6 +15,8 @@ Please see some excerpt of the logs below:
 
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+Sent at: <%= new Date().toUTCString() %>
+
 <% } else { %>
 
 <% } %>
diff --git a/src/mail_templates/user_event.ejs b/src/mail_templates/user_event.ejs
index 2b1f409bf..05b955d80 100644
--- a/src/mail_templates/user_event.ejs
+++ b/src/mail_templates/user_event.ejs
@@ -7,6 +7,8 @@ User <%= user.username || user.alternateEmail || user.email %> <%= event %> in t
 
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+Sent at: <%= new Date().toUTCString() %>
+
 <% } else { %>
 
 <% } %>