Sounds like an smtp authentication issue with the customer's email client to me. Is the sender an @xtra or spark hosted email account? Ray Taylor Taylor Communications mailto:ray(a)ruralkiwi.com ray(a)ruralkiwi.com Napier: 06-929-9082 Waipukurau: 06-928-0549 Description: header_logo From: nznog-bounces(a)list.waikato.ac.nz [mailto:nznog-bounces(a)list.waikato.ac.nz] On Behalf Of Daniel Christie Sent: Friday, 28 August 2015 5:26 p.m. To: nznog(a)list.waikato.ac.nz Subject: [nznog] issue with xtra mail Hey all, Is there anyone here who is an admin of the xtra mail servers for custom domains? I simply want to know why an email being sent from an email server to xtras would get this showing up in SMTP logs of the sending server 210.54.141.1 [1224] 12:52:37 Client session <<< 553 Authentication is required to send mail as user(a)domain.com I'm trying to go through normal spark support channels but they are trying to ask me questions about the email server I administer which are ridiculous and very frustrating. I'm fairly sure (with my knowledge of SMTP) the issue is that our server is saying its sending an email from an email account that is hosted on xtra servers and trying to send to the same email/account without first specifying auth I have given them more than enough information about the issue already and just not getting anywhere. Daniel Christie Systems Engineer/Application Specialist PHONE tel:+64-7-853-6060 +64 7 853 6060 | FAX tel:+64-7-854-9052 +64 7 854 9052 | http://www.enlighten.co.nz www.enlighten.co.nz
