Re: Unable to set postfix as smarthost with plain authentication on port 25 (no tls/ssl): error 550 5.1.0 xxxxx authentication failed - SOLVED!

anks again, Luca On Thu, Feb 14, 2013 at 3:10 PM, Reindl Harald wrote: > > Am 14.02.2013 14:48, schrieb Luca Arzeni: > > I'm in need of using a smarthost to relay all of my mail. > > > > I'm unable to use an italia provider (aruba) as smarthos for my server.

Unable to set postfix as smarthost with plain authentication on port 25 (no tls/ssl): error 550 5.1.0 xxxxx authentication failed

Hi, I'm using Debian GNU Linux 6.0 "squeeze", postfix 2.7.1-1+squeeze1 I'm in need of using a smarthost to relay all of my mail. I'm unable to use an italia provider (aruba) as smarthos for my server. I obtain the (in)famous "550 5.1.0 X authentication failed" relevant part of logs: Feb 6