When should outsourcing services be used?

(a) They should be used when direct e-mailing becomes too difficult to manage because of e-mail volume and inadequate staff or
technical support.
(b) They should be used when you are planning on sending out more than 20,000 mar-keting email messages.
(c) They should be used in a situation where a personalized marketing plan is called for.
(d) They should be used when you have a limited budget for marketing.

(a) They should be used when direct e-mailing becomes too difficult to manage because of e-mail volume and inadequate staff or
technical support.