On Sun October 21 2012 14:48, Will Nordmeyer wrote: > > Date: Sat, 20 Oct 2012 19:43:34 -0600 > > From: "David Thacker" <[email protected]> > > Subject: [BlueOnyx:11566] Re: Sendmail Authentication errors > > To: "BlueOnyx General Mailing List" <[email protected]> > > Message-ID: <DE7212B7E8B24B0B96D76983338E8415@TNTXP> > > Content-Type: text/plain; format=flowed; charset="iso-8859-1"; > > reply-type=original > > > >> Suddenly, with no real changes by me, I've got a few users who try to > >> send mail either via outlook or their iphone and they get 'Relaying > >> denied. Proper authentication required.' > >> > >> I had them check their mail and then do a send, but it still occurs. > >> > >> In the end (because I had limited debug time) I had to put their IP in > >> access as a RELAY. > >> > >> What else could be causing this to suddenly happen? > > > > Another cause of this behaviour may be if the user's account or their IP > > address (host) is blocked due to excessive failed logins. > > > > Log in to the server as admin, and go to the Security > Failed Logins > > menu. If you see those users on either the Blocked Hosts tab or the > > Blocked Users tab, click on the "Reset all blocks" button to unblock > > them. > > > > dAvid tHacker Email: > > [email protected] Thacker Network Technologies Inc. > > Http://www.ThackerNet.com > > David, > > Thanks for the thought - I'd checked and there were not host blocks or > user blocks. I just don't see why it just started up in the past 3-4 > days. >
If you are running poprelayd, then login (ssh) and make sure it is running and that their IP address is listed as a valid relay (after they check mail). (command is poprelayd -p) Better solution is to move them the authenticated (SMTP-AUTH, port 587) then you don't have to worry about poprelay (as much)... I have also had a few servers I had to manually enable "DELAY_CHECKS" parameter in sendmail.mc so that it checks the poprelay and smtp-auth before checking from RBL listed hosts. -- Larry Smith [email protected] _______________________________________________ Blueonyx mailing list [email protected] http://mail.blueonyx.it/mailman/listinfo/blueonyx
