Re: 550-IMAP/POP3: understanding returns/bounces error mssg

2013-10-11 Thread Wietse Venema
li...@sbt.net.au: j...@target.tld: host target.tld[69.175.yyy.xxx] said: 550-Please turn on SMTP Authentication in your mail client, or login to the 550-IMAP/POP3 server before sending your message. geko.sbt.net.au 550-[180.235.131.4]:51667 is not permitted to relay through this server

Re: 550-IMAP/POP3: understanding returns/bounces error mssg

2013-10-11 Thread lists
On Fri, October 11, 2013 10:31 pm, Wietse Venema wrote: What is the real server name? What is the real IP address? Wietse, thanks, from the log entry: corporatechange.com.au 69.175.105.186 BUT, looking at recent log entries, mail seems now delivered, THOUGH, log now show different IP for

Re: 550-IMAP/POP3: understanding returns/bounces error mssg

2013-10-11 Thread Wietse Venema
li...@sbt.net.au: On Fri, October 11, 2013 10:31 pm, Wietse Venema wrote: What is the real server name? What is the real IP address? Wietse, thanks, from the log entry: corporatechange.com.au 69.175.105.186 That IP address belongs to Singlehop. BUT, looking at recent log

550-IMAP/POP3: understanding returns/bounces error mssg

2013-10-10 Thread lists
I have a low usage 'workgroup' 'mini mail list' with a virtual alias that sends email to 8 or 10 addresses (on other servers), that works well. No changes have been made to target emails for several month, all's good. today I've received two Undelivered Mail Returned to Sender From: Mail