Fix the admin mailer config display (#20633)

options/locale/locale_en-US.ini

@@ -2796,16 +2796,19 @@ config.queue_length = Queue Length
 config.deliver_timeout = Deliver Timeout
 config.skip_tls_verify = Skip TLS Verification
 
-config.mailer_config = SMTP Mailer Configuration
+config.mailer_config = Mailer Configuration
 config.mailer_enabled = Enabled
-config.mailer_disable_helo = Disable HELO
+config.mailer_enable_helo = Enable HELO
 config.mailer_name = Name
-config.mailer_host = Host
+config.mailer_protocol = Protocol
+config.mailer_smtp_addr = SMTP Addr
+config.mailer_smtp_port = SMTP Port
 config.mailer_user = User
 config.mailer_use_sendmail = Use Sendmail
 config.mailer_sendmail_path = Sendmail Path
 config.mailer_sendmail_args = Extra Arguments to Sendmail
 config.mailer_sendmail_timeout = Sendmail Timeout
+config.mailer_use_dummy = Dummy
 config.test_email_placeholder = Email (e.g. test@example.com)
 config.send_test_mail = Send Testing Email
 config.test_mail_failed = Failed to send a testing email to '%s': %v

templates/admin/config.tmpl

@@ -218,12 +218,7 @@
 				{{if .MailerEnabled}}
 					<dt>{{.locale.Tr "admin.config.mailer_name"}}</dt>
 					<dd>{{.Mailer.Name}}</dd>
-					{{if eq .Mailer.MailerType "smtp"}}
-						<dt>{{.locale.Tr "admin.config.mailer_disable_helo"}}</dt>
-						<dd>{{if .DisableHelo}}{{svg "octicon-check"}}{{else}}{{svg "octicon-x"}}{{end}}</dd>
-						<dt>{{.locale.Tr "admin.config.mailer_host"}}</dt>
-						<dd>{{.Mailer.Host}}</dd>
-					{{else if eq .Mailer.MailerType "sendmail"}}
+					{{if eq .Mailer.Protocol "sendmail"}}
 						<dt>{{.locale.Tr "admin.config.mailer_use_sendmail"}}</dt>
 						<dd>{{svg "octicon-check"}}</dd>
 						<dt>{{.locale.Tr "admin.config.mailer_sendmail_path"}}</dt>
@@ -232,6 +227,18 @@
 						<dd>{{.Mailer.SendmailArgs}}</dd>
 						<dt>{{.locale.Tr "admin.config.mailer_sendmail_timeout"}}</dt>
 						<dd>{{.Mailer.SendmailTimeout}} {{.locale.Tr "tool.raw_seconds"}}</dd>
+					{{else if eq .Mailer.Protocol "dummy"}}
+						<dt>{{.locale.Tr "admin.config.mailer_use_dummy"}}</dt>
+						<dd>{{svg "octicon-check"}}</dd>
+					{{else}}{{/* SMTP family */}}
+						<dt>{{.locale.Tr "admin.config.mailer_protocol"}}</dt>
+						<dd>{{.Mailer.Protocol}}</dd>
+						<dt>{{.locale.Tr "admin.config.mailer_enable_helo"}}</dt>
+						<dd>{{if .Mailer.EnableHelo}}{{svg "octicon-check"}}{{else}}{{svg "octicon-x"}}{{end}}</dd>
+						<dt>{{.locale.Tr "admin.config.mailer_smtp_addr"}}</dt>
+						<dd>{{.Mailer.SMTPAddr}}</dd>
+						<dt>{{.locale.Tr "admin.config.mailer_smtp_port"}}</dt>
+						<dd>{{.Mailer.SMTPPort}}</dd>
 					{{end}}
 					<dt>{{.locale.Tr "admin.config.mailer_user"}}</dt>
 					<dd>{{if .Mailer.User}}{{.Mailer.User}}{{else}}(empty){{end}}</dd><br>