io.vertx.ext.mail

## Enum StartTLSOptions

- java.lang.Object
- - java.lang.Enum<StartTLSOptions>
  - - io.vertx.ext.mail.StartTLSOptions

- All Implemented Interfaces:
    Serializable, Comparable<StartTLSOptions>

      public enum StartTLSOptions
      extends Enum<StartTLSOptions>

  possible options for a secure connection using TLS
  either DISABLED, OPTIONAL or REQUIRED

  DISABLED means STARTTLS will not be used in any case

  OPTIONAL means STARTTLS will be used if the server supports it and a plain connection will be used otherwise; please note that this option is not as secure as it seems since a MITM attacker can remove the STARTTLS line from the capabilities reply.

  REQUIRED means that STARTTLS will be used if the server supports it and the send operation will fail otherwise

  Author:
    Alexander Lehmann

- - ### Enum Constant Summary

    Enum Constants
    Enum Constant and Description
    `DISABLED`
    `OPTIONAL`
    `REQUIRED`

  - ### Method Summary

    All Methods Static Methods Concrete Methods
    Modifier and Type | Method and Description
    --- | ---
    `static StartTLSOptions` | `valueOf(String name)` Returns the enum constant of this type with the specified name.
    `static StartTLSOptions[]` | `values()` Returns an array containing the constants of this enum type, in the order they are declared.

    - ### Methods inherited from class java.lang.Enum

      `clone, compareTo, equals, finalize, getDeclaringClass, hashCode, name, ordinal, toString, valueOf`

    - ### Methods inherited from class java.lang.Object

      `getClass, notify, notifyAll, wait, wait, wait`

- - ### Enum Constant Detail

    - #### DISABLED

          public static final StartTLSOptions DISABLED

    - #### OPTIONAL

          public static final StartTLSOptions OPTIONAL

    - #### REQUIRED

          public static final StartTLSOptions REQUIRED

  - ### Method Detail

    - #### values

          public static StartTLSOptions[] values()

      Returns an array containing the constants of this enum type, in the order they are declared. This method may be used to iterate over the constants as follows:

          for (StartTLSOptions c : StartTLSOptions.values())
              System.out.println(c);

      Returns:
        an array containing the constants of this enum type, in the order they are declared

    - #### valueOf

          public static StartTLSOptions valueOf(String name)

      Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)
      Parameters:
        `name` - the name of the enum constant to be returned.
      Returns:
        the enum constant with the specified name
      Throws:
        `IllegalArgumentException` - if this enum type has no constant with the specified name
        `NullPointerException` - if the argument is null

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