E-mails cannot be sent

Question:

My JobScheduler does not send e-mails, why does this happen?

Answer:

The sender address must be a valid address for your mail server. Problems might occur with outgoing mails if the domain part of this address is not valid for the mail server. Adjust the sender address in the entry log_mail_from of the configuration file ./config/factory.ini.

See also: SCHEDULER-320 could not send mail.