Hi,

I'm using PEAR's Mail class to send mail to a list of ~380 people each week. Problem is, I'm getting about 150 e-mails back with 'unroutable domain "hotmail.com"' errors. I'm currently sending 150 e-mails an hour, and the failings are spread across the different sendings. The system appears to work for sending e-mail to smaller groups (with no failures, except standard address not found bounces).

Any ideas?
Thanks,

Dom

    This problem is entirely unrelated to PHP. Contact your mail relay server sysadmin and ask them why it's happening or to investigate.

    Mark

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