title: php mailing list - considerations and potential pitfalls?
body: <p>my client needs a mailing list in their site.
  the idea is that users can subscribe to get newsletters or announcements.
  i expect the list to contains hundreds of users, not tens of thousands.</p>
  
  <p>i have not done this before (only single messages like "thank you for registering")
  my initial idea was sending each message to all users in 1 mail() call,
  using BCC for each user or sending it separately using a loop.
  but then a friend mentioned the possible problem of the server blocking a mail
  containing 1000 bcc's and also the a page timeout preventing the above mentioned loop from being fully executed.</p>
  
  <p>are there any other issues to consider?
  any possible solutions?
  should i use tools like PHPList,  Swiftmail to phpmailer?</p>
  
  <p>thanx in advance :-)</p>