[Twisted-Python] writing a newsletter manager in Twisted

[Manlio Perillo]

Hi and happy new year.

I would like to write a newsletter manager in Twisted, using
twisted.mail and twisted.names.

I have the following requirements:
1) The sending of mails should be queued.
    The sending should friendly to server and internet load

2) I should be notified when an email address in unreachable
    (after n tries)

3) I want to use a caching DNS server, where I should be able to control
    the TTL (not sure this is a good idea)


Is this possible with Twisted and how much code I have to write?

A much simpler solution is to just use a MTA like Postfix and a DNS
server like Bind, but Twisted is more portable and flexible (?).



Thanks   Manlio Perillo