I see Dada Mail can send its list messages in batches. Whats the best batch setting?
There is no “best” batch setting, and the batching feature is meant to be flexible. Some hosting providers only allow a certain amount of email to be sent in a length of time. If, all of a sudden you’re getting error messages from the SMTP server or from the sendmail command, you most likely have overburdened the mail server. The best thing to do is to experiment and see what works best with you and your specific constraints. Generally, it’s best not to go too overboard with the length of time between batches; I would generally recommend never going over 5 or 10 minutes. I would also recommend not having a batch of more than 1,000 messages. If these limits don’t seem reasonable, it’s best to lessen the time between batches (from 5 minutes, to 4), instead of having more messages per batch.
