[Mailman-Users] Unable to send emails with mailman/postfix

Scott Jones sjones at scisat.ca
Tue Mar 7 11:48:48 EST 2017

Hi Mark,

I've managed to forward port 25 to my VM. I am still not receiving messages
sent from my gmail address (on the list) to the mailing list.

The only other thing I've learned is that I can send mail to that same list
from the command line with 'mail -s', which leads me to believe postfix is

Thanks for all of your help,


On Mon, Mar 6, 2017 at 4:08 PM, Mark Sapiro <mark at msapiro.net> wrote:

> On 03/06/2017 01:01 PM, Scott Jones wrote:
> >
> > Just as a recap, I'm currently running mailman on a Ubuntu VM hosted on a
> > Ubuntu server. Perhaps then I need to forward port 25 to the VM somehow?
> I
> > did have this working fine from hard disks, but with some server troubles
> > we wanted to keep mailman more self-contained.
> Yes. That is your issue. You need port 25 connects to the host server to
> forward to Postfix on the Mailman VM. If your VM has its own IP address
> and DNS, this isn't an issue, but if DNS for the MX points to the host
> server, it needs to forward that port to the VM.
> --
> Mark Sapiro <mark at msapiro.net>        The highway is for gamblers,
> San Francisco Bay Area, California    better use your sense - B. Dylan
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