On Thu, 1 Oct 2020 15:39:55 -0400 "Demi M. Obenour" <demioben...@gmail.com> wrote:
> On 2020-10-01 15:18, Ranjan Maitra wrote: > > Thanks, very much. So when I hit "Send" on sylpheed, it goes on a tailspin, > > and says: Connecting to SMTP server: localhost > > > > Looking at the /var/log/maillog as you suggested, I get: > > > > Oct 1 14:08:00 localhost postfix/smtpd[4142479]: fatal: in parameter > > smtpd_relay_restrictions or smtpd_recipient_restrictions, specify at least > > one working instance of: reject_unauth_destination, > > defer_unauth_destination, reject, defer, defer_if_permit or > > check_relay_domains > > That is your problem. You haven’t told Postfix what restrictions > it should impose on mail relaying, so it exits to avoid becoming an > open relay. > My apologies: how do I do this/what should I do here? Thanks, Ranjan