MailAddressValidation

is an option for SendMail that specifies whether and how to validate email addresses.

Details

Typical settings include:
Automatic automatic validation test

None no validation

f an arbitrary function f
With the setting MailAddressValidation->f, the function f is applied to all sender and recipient email addresses.
If validation fails for any address, SendMail will not send any message, and will return a Failure object.

Examples

By default, some email validation is performed:

Turn off any validation:

Specify a custom validation function:

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