Michael, The reverse DNS is also mentioned in the Google help page. Your reverse DNS seems to be wrong. HTH -- Rick On January 19, 2019 1:02:39 PM EST, "Michael P. Soulier" <msoulier [ at ] digitaltorque [ dot ] ca> wrote: >So, I help our my sister's business by handling her domain. For some >time she has paid for a virtual server with westhost.com, and on it, I >have a simple forward rule in /etc/aliases for her business account to >her gmail account, as she requested. > >trish: tsoulier [ at ] gmail [ dot ] com >petservices: trish > >So someone emailing petservices [ at ] pawsitiveapproach [ dot ] ca will result in a >forward to tsoulier [ at ] gmail [ dot ] com. This has been working fine. > >Suddenly it's not. > > ----- The following addresses had permanent fatal errors ----- >tsoulier [ at ] gmail [ dot ] com > (reason: 550-5.7.1 This message does not have authentication >information or fails to pass) > (expanded from: trish) > > ----- Transcript of session follows ----- >... while talking to gmail-smtp-in.l.google.com.: >>>> DATA ><<< 550-5.7.1 This message does not have authentication information or >fails to pass ><<< 550-5.7.1 authentication checks. To best protect our users from >spam, the ><<< 550-5.7.1 message has been blocked. Please visit ><<< 550-5.7.1 >https://support.google.com/mail/answer/81126#authentication for more ><<< 550 5.7.1 information. s3si2560808iom.144 - gsmtp >554 5.0.0 Service unavailable > >I don't understand why google is asking for authentication for a simple >forward. We're not relaying, we're forwarding. > >I'm in the middle of moving her nameservers to use my config at >digitalocean so I can better control her setup, but I've had the same >issue there with a simple mail forward so I'm asking. > >If I use postfix' virtual hosting, then that works. But why would a >simple /etc/aliases forward be rejected? > >Help appreciated. Google's explanation is not helpful, at least to me. > >Mike > >To unsubscribe send a blank message to >linux+unsubscribe [ at ] linux-ottawa [ dot ] org >To get help send a blank message to linux+help [ at ] linux-ottawa [ dot ] org >To visit the archives: https://lists.linux-ottawa.org -- Sorry for being brief. Alternate email is rickleir at yahoo dot com