CaLy Posted December 5, 2013 Share Posted December 5, 2013 Hello ! I am Carlos Octavio, from Rosario (Argentina) ... My ISP is Arnet (arnet.com.ar) , i have my email there but i am migrating to another one, because i have problems with that account... And I want to know why itÂ´s that... if itÂ´s me, or if itÂ´s related to my ISP. Everyday i have a lot of mails (like 100 or more, sometimes 300+) with mailer daemon fail message, something like The following message to blabla[at]bla.com was undeliverable. The reason for the problem: 5.3.0 - Other mail system problem 550-'5.7.1 Message rejected as spam by Content Filtering.' or This is an automatically generated Delivery Status Notification THIS IS A WARNING MESSAGE ONLY. YOU DO NOT NEED TO RESEND YOUR MESSAGE. Delivery to the following recipient has been delayed: blabla[at]blabla.com Message will be retried for 2 more day(s) ----- Original message ----- ... The fact is i NEVER sent that message/s ... in headers it says it was my email the sender, but i dont have them in the sent messages ... so: is it related to my isp opened port 25, or ... what? Thanks !! Carlos Octavio Link to comment Share on other sites More sharing options...
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