Update email-setup.en-us.md (go-gitea#26068)

The setting `MAILER_TYPE` is deprecated.
According to the config cheat sheet, it should be `PROTOCOL`.

---------

Co-authored-by: Lunny Xiao <xiaolunwen@gmail.com>

Author: 2 people

docs/content/administration/email-setup.en-us.md

@@ -31,7 +31,7 @@ Note: For Internet-facing sites consult documentation of your MTA for instructio
 [mailer]
 ENABLED       = true
 FROM          = gitea@mydomain.com
-MAILER_TYPE   = sendmail
+PROTOCOL      = sendmail
 SENDMAIL_PATH = /usr/sbin/sendmail
 SENDMAIL_ARGS = "--" ; most "sendmail" programs take options, "--" will prevent an email address being interpreted as an option.
 ```
@@ -44,10 +44,9 @@ Directly use SMTP server as relay. This option is useful if you don't want to se
 [mailer]
 ENABLED        = true
 FROM           = gitea@mydomain.com
-MAILER_TYPE    = smtp
+PROTOCOL       = smtps
 SMTP_ADDR      = mail.mydomain.com
 SMTP_PORT      = 587
-IS_TLS_ENABLED = true
 USER           = gitea@mydomain.com
 PASSWD         = `password`
 ```
@@ -80,7 +79,7 @@ SMTP_PORT      = 465
 FROM           = example.user@gmail.com
 USER           = example.user
 PASSWD         = `***`
-MAILER_TYPE    = smtp
+PROTOCOL       = smtp
 IS_TLS_ENABLED = true
 ```
 

docs/content/administration/email-setup.zh-cn.md

@@ -31,7 +31,7 @@ Gitea 具有邮件功能，用于发送事务性邮件（例如注册确认邮
 [mailer]
 ENABLED       = true
 FROM          = gitea@mydomain.com
-MAILER_TYPE   = sendmail
+PROTOCOL   = sendmail
 SENDMAIL_PATH = /usr/sbin/sendmail
 SENDMAIL_ARGS = "--" ; 大多数 "sendmail" 程序都接受选项，使用 "--" 将防止电子邮件地址被解释为选项。
 ```
@@ -44,10 +44,9 @@ SENDMAIL_ARGS = "--" ; 大多数 "sendmail" 程序都接受选项，使用 "--"
 [mailer]
 ENABLED        = true
 FROM           = gitea@mydomain.com
-MAILER_TYPE    = smtp
+PROTOCOL    = smtps
 SMTP_ADDR      = mail.mydomain.com
 SMTP_PORT      = 587
-IS_TLS_ENABLED = true
 USER           = gitea@mydomain.com
 PASSWD         = `password`
 ```
@@ -80,8 +79,7 @@ SMTP_PORT      = 465
 FROM           = example.user@gmail.com
 USER           = example.user
 PASSWD         = `***`
-MAILER_TYPE    = smtp
-IS_TLS_ENABLED = true
+PROTOCOL    = smtps
 ```
 
 请注意，您需要创建并使用一个 [应用密码](https://support.google.com/accounts/answer/185833?hl=en) 并在您的 Google 帐户上启用 2FA。您将无法直接使用您的 Google 帐户密码。

docs/content/installation/with-docker-rootless.en-us.md

@@ -306,7 +306,7 @@ services:
     environment:
       - GITEA__mailer__ENABLED=true
       - GITEA__mailer__FROM=${GITEA__mailer__FROM:?GITEA__mailer__FROM not set}
-      - GITEA__mailer__MAILER_TYPE=smtp
+      - GITEA__mailer__PROTOCOL=smtp
       - GITEA__mailer__HOST=${GITEA__mailer__HOST:?GITEA__mailer__HOST not set}
       - GITEA__mailer__IS_TLS_ENABLED=true
       - GITEA__mailer__USER=${GITEA__mailer__USER:-apikey}

docs/content/installation/with-docker-rootless.zh-cn.md

@@ -274,7 +274,7 @@ services:
     environment:
       - GITEA__mailer__ENABLED=true
       - GITEA__mailer__FROM=${GITEA__mailer__FROM:?GITEA__mailer__FROM not set}
-      - GITEA__mailer__MAILER_TYPE=smtp
+      - GITEA__mailer__PROTOCOL=smtp
       - GITEA__mailer__HOST=${GITEA__mailer__HOST:?GITEA__mailer__HOST not set}
       - GITEA__mailer__IS_TLS_ENABLED=true
       - GITEA__mailer__USER=${GITEA__mailer__USER:-apikey}

docs/content/installation/with-docker.en-us.md

@@ -303,9 +303,8 @@ services:
     environment:
       - GITEA__mailer__ENABLED=true
       - GITEA__mailer__FROM=${GITEA__mailer__FROM:?GITEA__mailer__FROM not set}
-      - GITEA__mailer__MAILER_TYPE=smtp
+      - GITEA__mailer__PROTOCOL=smtps
       - GITEA__mailer__HOST=${GITEA__mailer__HOST:?GITEA__mailer__HOST not set}
-      - GITEA__mailer__IS_TLS_ENABLED=true
       - GITEA__mailer__USER=${GITEA__mailer__USER:-apikey}
       - GITEA__mailer__PASSWD="""${GITEA__mailer__PASSWD:?GITEA__mailer__PASSWD not set}"""
 ```

docs/content/installation/with-docker.zh-cn.md

@@ -287,9 +287,8 @@ services:
     environment:
       - GITEA__mailer__ENABLED=true
       - GITEA__mailer__FROM=${GITEA__mailer__FROM:?GITEA__mailer__FROM not set}
-      - GITEA__mailer__MAILER_TYPE=smtp
+      - GITEA__mailer__PROTOCOL=smtps
       - GITEA__mailer__HOST=${GITEA__mailer__HOST:?GITEA__mailer__HOST not set}
-      - GITEA__mailer__IS_TLS_ENABLED=true
       - GITEA__mailer__USER=${GITEA__mailer__USER:-apikey}
       - GITEA__mailer__PASSWD="""${GITEA__mailer__PASSWD:?GITEA__mailer__PASSWD not set}"""
 ```

tests/mssql.ini.tmpl

@@ -58,7 +58,7 @@ PATH = tests/{{TEST_TYPE}}/gitea-{{TEST_TYPE}}-mssql/data/attachments
 
 [mailer]
 ENABLED = true
-MAILER_TYPE = dummy
+PROTOCOL = dummy
 FROM = mssql-{{TEST_TYPE}}-test@gitea.io
 
 [service]

tests/mysql.ini.tmpl

@@ -58,7 +58,7 @@ SSH_TRUSTED_USER_CA_KEYS = ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABgQCb4DC1dMFnJ6pXW
 
 [mailer]
 ENABLED = true
-MAILER_TYPE = dummy
+PROTOCOL = dummy
 FROM = mysql-{{TEST_TYPE}}-test@gitea.io
 
 [service]

tests/pgsql.ini.tmpl

@@ -59,7 +59,7 @@ PATH = tests/{{TEST_TYPE}}/gitea-{{TEST_TYPE}}-pgsql/data/attachments
 
 [mailer]
 ENABLED = true
-MAILER_TYPE = dummy
+PROTOCOL = dummy
 FROM = pgsql-{{TEST_TYPE}}-test@gitea.io
 
 [service]

tests/sqlite.ini.tmpl

@@ -55,7 +55,7 @@ PATH = tests/{{TEST_TYPE}}/gitea-{{TEST_TYPE}}-sqlite/data/attachments
 
 [mailer]
 ENABLED     = true
-MAILER_TYPE = dummy
+PROTOCOL = dummy
 FROM        = sqlite-{{TEST_TYPE}}-test@gitea.io
 
 [service]