Help center support eXpress
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Security
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Security
RTS
ETS
This subsection configures SMS spam protection.
The SMS provider may have its own filters, limits, and blocking rules configured.
| Parameter | What It Does |
|---|---|
| Request Rate Limiter by IP Address | Limits the number of attempts to get an SMS from a single IP within the specified number of seconds. |
| Filter by User-Agent | Prohibits requesting SMS from browsers whose User Agent matches a regular expression. |
| Filter by DEF-code | Prohibits requesting SMS for numbers in the specified countries and with the specified DEF codes. |
| Filter by phone | Prohibits requesting SMS for phone numbers that match a regular expression. |
| Max. requests limit per phone number | If a number owner exceeds the specified number of SMS requests, this capability will be blocked for them for 24 hours. |
| Unblock user | Removes the triggered block on receiving SMS. Enter the user's mobile phone number or IP address in this field and click Unblock. Enter the number with the country code, without the plus symbol, spaces, or hyphens. |