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Hi All,

Can you please guide us in steps in how to enable SSL in PMTA and what additional steps is needed by client for this?

I don't think that is an option. The SMTP from will be whatever your set in your vmta smtp-source-host ... In theory you could add your own return path header to the messages but I've never heard of that working well.

Thanks Reym. I understand that return-path is set to SMTP from. What I am looking for is a way to set the return-path at PMTA irrespective of FROM address coming from feeding application.

It's not very clear on the forum if it's possible to set return-path for all outgoing email through PMTA so asynchronous bounces come to a particular domain/address.

your return path is set by your SMTP-From

Thanks Jsingh for the response. Is there a way to set the return-path at the PMTA for all outgoing emails ? We would want to keep the return-path with the different domain from the From domain to be able to receive the remote bounces and process them through PMTA.

Thank you for the help.

PowerMTA would not have a problem having the hostnames similar but you have valid questions on the return path. When a domain wants to bounce back to you, it is going to do a DNS lookup on your domain - having the same hostnames without a load balancer may not be best practice. TL;DR - Keep hostnames unique, have incoming/bounces fronted by a load balancer.

Hi,

We have a couple of PowerMTA instances running on high configuration VMs. All of these servers are behind a load balancer.

We have multiple applications (end users) relaying emails through different VMTA.

Simple VMTA config that we have:

<virtual-mta hostname-mta-01>
     smtp-source-host 10.0.0.2 smtp.mydomain.com
</virtual-mta>
<virtual-mta hostname-mta-02>
     smtp-source-host 10.0.0.4 smtp.mydomain.com
</virtual-mta>

Can we keep the sub-domain (smtp.mydomain.com) same across all the PowerMTA instances ? Would this impact return-path in anyway ?

Please note all of the end users relaying through these servers set their From address/domain while feeding and don't set the return-path explicitly.
 
Any help is highly appreciated. Thanks.

pmta --dom show status

Write a script the runs that command every x minutes and dumps it somewhere.  The --dom works on most commands.

Is there any way we can verify DKIM signature in .Net ?

What is the recommended way to monitor PMTA stats like queue size, connections etc. ? Can we get those values in OS performance counters?