Hello,
I'm running a Linux VPS server hosting many accounts, suddenly all the users started reporting undelivered emails. I called the hosting company but they couldn't help.
I have received different reports from different users :
I received may undelivered email reports from different users hosted on my server, started all together in the same day. I think the problem is either from my server or from my hosting company.
How can I track this issue ??
Thanks
I'm running a Linux VPS server hosting many accounts, suddenly all the users started reporting undelivered emails. I called the hosting company but they couldn't help.
I have received different reports from different users :
Code:
554 Connection refused from (IP)
550 , 550-"JunkMail rejected - (sxb1nlsmtp02.prod.sxb1.secureserver.net) 550-[92.204.71.188]:59664 is in an RBL on
550-csi.cloudmark.com/reset-request/?ip=92.204.71.188 , see Poor Reputation
550 Sender"
554 , 554 5.7.1 Delivery not authorized
550 - 550 Junkmail rejected
How can I track this issue ??
Thanks