You may want to take advantage of phpList's "domain throttling" features if you have lots of subscribers on the same domain and you want to avoid having yourself classed as a "spammer" by their e-mail provider. Throttling slows down e-mail delivery to a maximum messages-per-period rate, ensuring that you don't flood a particular e-mail host with too many concurrent messages.
To use domain throttling, edit the following lines in config/config.php:
define('USE_DOMAIN_THROTTLE',0); define('DOMAIN_BATCH_SIZE',1); define('DOMAIN_BATCH_PERIOD',120);
Change USE_DOMAIN_THROTTLE
to 1
to turn on the domain throttling feature, and then customize DOMAIN_BATCH_SIZE
and DOMAIN_BATCH_PERIOD
(in seconds) for the amount of e-mails (that is, BATCH_SIZE)
to be sent to a given domain within a particular period.
For example, you may want to deliver a maximum of one message per minute to each destination domain. In this case, you'd use the following configuration:
define('USE_DOMAIN_THROTTLE...