Hi,
I had a problem with my server that I solved and I thought I'd share the solution with you because I didn't find anything relevant information about it on google or on this forum.
For a reason that I won't discuss here, mail for an account located on server1 was being sent through the smtp of server2. Authentification was on and all.
However, the emails were rejected by a certain destination with the error : 450 Requested mail action not taken: Invalid IP
Solution was that the domain name needed and SPF record that stated that mail for that domain could originate from server2. So it was being blocked by a spam protection.
So if my client's domain is cx.com and my two servers are s1.server.com and s2.server.com, cx.com's dns entry needs
But you can create an SPF record for you domain using the nice tutorial here : http://www.openspf.org/
Hope this will help someone out there
Frank
I had a problem with my server that I solved and I thought I'd share the solution with you because I didn't find anything relevant information about it on google or on this forum.
For a reason that I won't discuss here, mail for an account located on server1 was being sent through the smtp of server2. Authentification was on and all.
However, the emails were rejected by a certain destination with the error : 450 Requested mail action not taken: Invalid IP
Solution was that the domain name needed and SPF record that stated that mail for that domain could originate from server2. So it was being blocked by a spam protection.
So if my client's domain is cx.com and my two servers are s1.server.com and s2.server.com, cx.com's dns entry needs
Code:
TXT "v=spf1 a:s1.server.com a:s2.server.com ?all"Hope this will help someone out there
Frank