On 2012-02-02 15:39, Ned Slider wrote: > > I would recommend removing reject_unknown_client from your > smtpd_sender_restrictions. > I would not recommend that, I would recommend you fix your DNS. If you have a lot of mail throughput perhaps run a caching-DNS server or proxy to improve performance and reduce timeouts. -- Message sent via my webmail account. _______________________________________________ CentOS mailing list CentOS@xxxxxxxxxx http://lists.centos.org/mailman/listinfo/centos