I run a mailing list with 4000 subscribers (jdm-society@sjdm.org). Every time it sends mail to the list I get about 10 failure messages (completely failure, not temporary failure that keeps mail in the queue) saying that the host is not found or the email address doesn't exist. I can often find the host with the (linux) "host" command, and the email address checker often shows that the address is valid. The same email address that failed usually succeeds on the next post.

I would like to keep these messages in the queue if possible, or maybe allow more time for finding the host, or something, before giving up on the first try. I cannot find a configuration option.

Jon

Jonathan Baron, Professor of Psychology, University of Pennsylvania Home page: https://www.sas.upenn.edu/~baron Editor: Judgment and Decision Making (http://journal.sjdm.org) Associate webmaster: sjdm.org