Hi All

We have a number of hosted servers that email us directly on completion of the backup script, no changes have been made to the default postfix setup.

Until last week we hosted our mail with google so if the colocation centre went down we could still work. We now have another server in a new location for our mail so have swapped the mx records keeping google in there as a just incase but the new server is the highest priority,

There are a few server that insist in continuing to email via google. If I do a dig MX it shows the correct list of mx records and priority yet I can't get them to email to the new server. Pinging the A record brings back the correct address for the new server.

Can anyone help me here as it's driving me crazy.

Thanks

Glenn

May be the port has change ??

Ports are the same and all other emails arrive as expected on the new server. Just these few backup scripts going through postfix

Did you restart postfix on those servers after making the changes to their configs? Can you send mail through the new server from the command line? Aside from a ping, what other diagnostics have you performed?