Event triggered email to NMS subscribers?

[Garamond]

I hope someone could help me with this.

A client requested that an event triggered email would be sent to NMS subscribers when a new news article or calendar event is added. The email should contain the article content or even a part of it.

Anyway, (without any further speculation about how wise this would be) the problem is I don't know if this is possible and if so how much work it involves. So I would appreciate any help on this topic, especially because my php-skills are quite close to zero.