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Thanks for your help. I moved half the queue and they went but then the second server had the same problem. Turns out its actually a microsoft error so trying to find another plan. https://www.reddit.com/r/sysadmin/comments/1755npg/anyone_else_seeing_outlook_mail_delivery_problems/

Oh thats a shame! I tried moving the emails from /var/spool/postfix/deferred/* to another server. I tried with 1 just before i posted and it looked to work but i didnt know if there would be any unexpected concequences? I didnt change any headers or anything else. When you say "send it again"...

Hi, We have a proxmox server cluster that has been running with no problems for a few years. This morning someone sent an email to a large contact group. They realised they made some errors and sent a second one with a few corrections. This has meant Office365 has put one of the servers in the...

You missed a step I believe. You need to rename the file pmg-log-tracker to pmg-log-tracker-default then make a file pmg-log-tracker with the SSH scripts in it.

Thank you. I ended up restarting the postfix service on all the servers in the cluster and they have then re-routed the specified domains to our other host. thank you very much.

They are all saying deferred due to use complaints, but these are the first emails being sent. I understand the IP may just need to build a reputation. It is only Yahoo servers so (yahoo, aol, sky, rocketmail) email addresses that are getting deferred. I have no problem with them being deferred...

Hi, We have recently started using Proxmox for testing outgoing email filtering. We have a problem where emails to a specific domain are being deferred due to unusual activity. They are genuine emails that got sent find on our old IP address and system. We have waited 24 hours and they are...

You add it to the originals. You don't need to include the SSH to its own server as the first line is its own server, so you only need to include the SSH lines to other servers in the cluster (host or node) just not iteslf. edit: I have re-read your post, yes as you say at the end, add NODE3 to...

To say i have just installed a 3 node cluster and added the script to do tracking across all nodes. I had to run the below commands in an SSH session on each of the servers (connecting to each of the others) which prompted an SSH Thumbprint accept option in each of the sessions. Once I had done...