On Fri, Apr 20, 2018 at 03:53:17PM -0400, Kevin A. McGrail wrote: > On 4/20/2018 3:40 PM, @lbutlr wrote: > > How would I configure a user so that they could only read mail > > and not send any mail (even to local users). > > > Different auth for POP or IMAP vs SMTP?
Or in the SASL backend, have this user's credentials not be valid for SMTP, or in Postfix a check_sasl_access lookup to reject this user's mail. Lots of ways. These will also necessitate that you require your users to AUTH; no permit_mynetworks nor similar IP-based relay allowances. If perchance this is a shell user, don't forget to exclude him/her from your authorized_submit_users, to prevent sendmail submission. -- http://rob0.nodns4.us/ Offlist GMX mail is seen only if "/dev/rob0" is in the Subject:
