Job validations

The following validations have to be considered:

• Total size of any generated MIME-message must be <= 20 MB; else job will be rejected.

• If the contentTransferEncoding = base64, then the resulting total size of generated MIME- message will be estimated by "total size resulting from JSON-fields in job-request" + 30%.

• The subject is mandatory, and a missing subject will default to an empty string.

Referred to sender domain:

• If the last DKIM check wasn't successful, then the job can be rejected.

• If the last SPF check wasn't successful, then the job can be rejected.

Syntactical email address validation occurs according to RFC 5322 by using the following regex:

(?:[a-z0-9!#$%&'*+/=?^_`{|}~-]+(?:\.[a-z0-9!#$%&'*+/=?^_`{|}~-]+)*|"(?:[\x01-\x08\x0b\x0c\x0e-
\x1f\x21\x23-\x5b\x5d-\x7f]|\\[\x01-\x09\x0b\x0c\x0e-\x7f])*")@(?:(?:[a-z0-9](?:[a-z0-9-]*[a-z0- 9])?\.)+[a-z0-9](?:[a-z0-9-]*[a-z0-9])?|\[(?:(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.){3}(?:25[0-
5]|2[0-4][0-9]|[01]?[0-9][0-9]?|[a-z0-9-]*[a-z0-9]:(?:[\x01-\x08\x0b\x0c\x0e-\x1f\x21-\x5a\x53-
\x7f]|\\[\x01-\x09\x0b\x0c\x0e-\x7f])+)\])