com.sos.jitl.jobs.mail.MailJob should not use default SMTP port

Current Situation

• When the mail.smtp.port setting is not configured for a Job Resource used by the MailJob or not defined in the MailJob itself, the MailJob uses the job default smtp port 25
  • this default value is not correct when for example a SSL/TLS protocol is used.

Desired Behaviour

• When the setting mail.smtp.port is not configured, the MailJob should use the JavaMail defaults instead of its own.