diff --git a/docs/publish.md b/docs/publish.md
index b046bd2a..1f52cf3a 100644
--- a/docs/publish.md
+++ b/docs/publish.md
@@ -2695,6 +2695,237 @@ title `You've Got Mail` to topic `sometopic` (see [ntfy.sh/sometopic](https://nt
Publishing a message via e-mail
+## Text message (SMS)
+_Supported on:_ :material-android: :material-apple: :material-firefox:
+
+You can forward messages as text message (SMS) by specifying a phone number a header. Similar to email notifications,
+this can be useful to blast-notify yourself on all possible channels, or to notify people that do not have the ntfy app
+installed on their phone.
+
+To forward a message as an SMS, pass a phone number in the `X-SMS` header (or its alias: `SMS`), prefixed with a plus sign
+and the country code, e.g. `+12223334444`.
+
+On ntfy.sh, this feature is only supported to [ntfy Pro](https://ntfy.sh/app) plans.
+
+=== "Command line (curl)"
+ ```
+ curl \
+ -H "SMS: +12223334444" \
+ -d "Your garage seems to be on fire 🔥. You should probably check that out, and call 0118 999 881 999 119 725 3." \
+ ntfy.sh/alerts
+ ```
+
+=== "ntfy CLI"
+ ```
+ ntfy publish \
+ --email=phil@example.com \
+ --tags=warning,skull,backup-host,ssh-login \
+ --priority=high \
+ alerts "Unknown login from 5.31.23.83 to backups.example.com"
+ ```
+
+=== "HTTP"
+ ``` http
+ POST /alerts HTTP/1.1
+ Host: ntfy.sh
+ Email: phil@example.com
+ Tags: warning,skull,backup-host,ssh-login
+ Priority: high
+
+ Unknown login from 5.31.23.83 to backups.example.com
+ ```
+
+=== "JavaScript"
+ ``` javascript
+ fetch('https://ntfy.sh/alerts', {
+ method: 'POST',
+ body: "Unknown login from 5.31.23.83 to backups.example.com",
+ headers: {
+ 'Email': 'phil@example.com',
+ 'Tags': 'warning,skull,backup-host,ssh-login',
+ 'Priority': 'high'
+ }
+ })
+ ```
+
+=== "Go"
+ ``` go
+ req, _ := http.NewRequest("POST", "https://ntfy.sh/alerts",
+ strings.NewReader("Unknown login from 5.31.23.83 to backups.example.com"))
+ req.Header.Set("Email", "phil@example.com")
+ req.Header.Set("Tags", "warning,skull,backup-host,ssh-login")
+ req.Header.Set("Priority", "high")
+ http.DefaultClient.Do(req)
+ ```
+
+=== "PowerShell"
+ ``` powershell
+ $Request = @{
+ Method = "POST"
+ URI = "https://ntfy.sh/alerts"
+ Headers = @{
+ Title = "Low disk space alert"
+ Priority = "high"
+ Tags = "warning,skull,backup-host,ssh-login")
+ Email = "phil@example.com"
+ }
+ Body = "Unknown login from 5.31.23.83 to backups.example.com"
+ }
+ Invoke-RestMethod @Request
+ ```
+
+=== "Python"
+ ``` python
+ requests.post("https://ntfy.sh/alerts",
+ data="Unknown login from 5.31.23.83 to backups.example.com",
+ headers={
+ "Email": "phil@example.com",
+ "Tags": "warning,skull,backup-host,ssh-login",
+ "Priority": "high"
+ })
+ ```
+
+=== "PHP"
+ ``` php-inline
+ file_get_contents('https://ntfy.sh/alerts', false, stream_context_create([
+ 'http' => [
+ 'method' => 'POST',
+ 'header' =>
+ "Content-Type: text/plain\r\n" .
+ "Email: phil@example.com\r\n" .
+ "Tags: warning,skull,backup-host,ssh-login\r\n" .
+ "Priority: high",
+ 'content' => 'Unknown login from 5.31.23.83 to backups.example.com'
+ ]
+ ]));
+ ```
+
+Here's what that looks like in Google Mail:
+
+
+ { width=600 }
+ E-mail notification
+
+
+
+## Phone calls
+_Supported on:_ :material-android: :material-apple: :material-firefox:
+
+You can forward messages to e-mail by specifying an address in the header. This can be useful for messages that
+you'd like to persist longer, or to blast-notify yourself on all possible channels.
+
+Usage is easy: Simply pass the `X-Email` header (or any of its aliases: `X-E-mail`, `Email`, `E-mail`, `Mail`, or `e`).
+Only one e-mail address is supported.
+
+Since ntfy does not provide auth (yet), the rate limiting is pretty strict (see [limitations](#limitations)). In the
+default configuration, you get **16 e-mails per visitor** (IP address) and then after that one per hour. On top of
+that, your IP address appears in the e-mail body. This is to prevent abuse.
+
+=== "Command line (curl)"
+ ```
+ curl \
+ -H "Email: phil@example.com" \
+ -H "Tags: warning,skull,backup-host,ssh-login" \
+ -H "Priority: high" \
+ -d "Unknown login from 5.31.23.83 to backups.example.com" \
+ ntfy.sh/alerts
+ curl -H "Email: phil@example.com" -d "You've Got Mail"
+ curl -d "You've Got Mail" "ntfy.sh/alerts?email=phil@example.com"
+ ```
+
+=== "ntfy CLI"
+ ```
+ ntfy publish \
+ --email=phil@example.com \
+ --tags=warning,skull,backup-host,ssh-login \
+ --priority=high \
+ alerts "Unknown login from 5.31.23.83 to backups.example.com"
+ ```
+
+=== "HTTP"
+ ``` http
+ POST /alerts HTTP/1.1
+ Host: ntfy.sh
+ Email: phil@example.com
+ Tags: warning,skull,backup-host,ssh-login
+ Priority: high
+
+ Unknown login from 5.31.23.83 to backups.example.com
+ ```
+
+=== "JavaScript"
+ ``` javascript
+ fetch('https://ntfy.sh/alerts', {
+ method: 'POST',
+ body: "Unknown login from 5.31.23.83 to backups.example.com",
+ headers: {
+ 'Email': 'phil@example.com',
+ 'Tags': 'warning,skull,backup-host,ssh-login',
+ 'Priority': 'high'
+ }
+ })
+ ```
+
+=== "Go"
+ ``` go
+ req, _ := http.NewRequest("POST", "https://ntfy.sh/alerts",
+ strings.NewReader("Unknown login from 5.31.23.83 to backups.example.com"))
+ req.Header.Set("Email", "phil@example.com")
+ req.Header.Set("Tags", "warning,skull,backup-host,ssh-login")
+ req.Header.Set("Priority", "high")
+ http.DefaultClient.Do(req)
+ ```
+
+=== "PowerShell"
+ ``` powershell
+ $Request = @{
+ Method = "POST"
+ URI = "https://ntfy.sh/alerts"
+ Headers = @{
+ Title = "Low disk space alert"
+ Priority = "high"
+ Tags = "warning,skull,backup-host,ssh-login")
+ Email = "phil@example.com"
+ }
+ Body = "Unknown login from 5.31.23.83 to backups.example.com"
+ }
+ Invoke-RestMethod @Request
+ ```
+
+=== "Python"
+ ``` python
+ requests.post("https://ntfy.sh/alerts",
+ data="Unknown login from 5.31.23.83 to backups.example.com",
+ headers={
+ "Email": "phil@example.com",
+ "Tags": "warning,skull,backup-host,ssh-login",
+ "Priority": "high"
+ })
+ ```
+
+=== "PHP"
+ ``` php-inline
+ file_get_contents('https://ntfy.sh/alerts', false, stream_context_create([
+ 'http' => [
+ 'method' => 'POST',
+ 'header' =>
+ "Content-Type: text/plain\r\n" .
+ "Email: phil@example.com\r\n" .
+ "Tags: warning,skull,backup-host,ssh-login\r\n" .
+ "Priority: high",
+ 'content' => 'Unknown login from 5.31.23.83 to backups.example.com'
+ ]
+ ]));
+ ```
+
+Here's what that looks like in Google Mail:
+
+
+ { width=600 }
+ E-mail notification
+
+
+
## Authentication
Depending on whether the server is configured to support [access control](config.md#access-control), some topics
may be read/write protected so that only users with the correct credentials can subscribe or publish to them.