diff --git a/app/models/channel/email_parser.rb b/app/models/channel/email_parser.rb
index 9f2c807a4c..2ca073cd46 100644
--- a/app/models/channel/email_parser.rb
+++ b/app/models/channel/email_parser.rb
@@ -561,7 +561,8 @@ returns
     end
 
     Rails.logger.info "Send mail too large postmaster message to: #{reply_mail[:to]}"
-    reply_mail[:from] = EmailAddress.find_by(channel: channel).email
+    email_address = EmailAddress.find_by(channel: channel)
+    reply_mail[:from] = Channel::EmailBuild.recipient_line(email_address.name, email_address.email)
     channel.deliver(reply_mail)
   rescue => e
     Rails.logger.error "Error during sending of postmaster oversized email auto-reply: #{e.inspect}\n#{e.backtrace}"
diff --git a/spec/models/channel/driver/imap_spec.rb b/spec/models/channel/driver/imap_spec.rb
index 828eb24493..5a7e0b16fd 100644
--- a/spec/models/channel/driver/imap_spec.rb
+++ b/spec/models/channel/driver/imap_spec.rb
@@ -354,6 +354,7 @@ RSpec.describe Channel::Driver::Imap, integration: true, required_envs: %w[MAIL_
           expect(parsed_oversized_email_reply).to include(
             {
               from_email: email_address.email,
+              from_display_name: email_address.name,
               subject: '[undeliverable] Message too large',
               'references' => "<#{cid}@zammad.test.com>",
               'in-reply-to' => "<#{cid}@zammad.test.com>",