# ``twisted`.`mail`.`smtp`.`TLSRequiredError``

class documentation

`class TLSRequiredError(ESMTPClientError): (source)`

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Transport security was required but the server does not support it.

This is considered a non-fatal error (the connection will not be dropped).

Inherited from `SMTPClientError` (via `ESMTPClientError`):

Method | `__bytes__` | Undocumented
Method | `__init__` | No summary
Method | `__str__` | Undocumented
Instance Variable | `addresses` | Undocumented
Instance Variable | `code` | Undocumented
Instance Variable | `isFatal` | Undocumented
Instance Variable | `log` | Undocumented
Instance Variable | `resp` | Undocumented
Instance Variable | `retry` | Undocumented