Hello, i did install odoo10 community (this version 10.0-20170103) on ubuntu 16.04 virtual local machine, everything goes fine by following the guide, been setting up wkhtmltopdf and other usefull tools for my country fiscal settings.

i did arrive to the email setup, and started first problems, i will explain what kind of interaction i need between emails/odoo for the company and how i did try to reach that goal.

in the ideal setup i must have all outgoing emails with FROM to be always the same, in that case noreply@xxxx.com

than by setting the reply to field everyone that receive an odoo generated document could reply to the user that actually send the email via odoo.

on the incoming email, i only have one email for generating leads, i don't need any other communication for users, so actually this is not giving problems.

that is all what i try to do to reach my goal of outgoing emails setup.

1) at begin communication witha  dovecot+postfix vm was not working, so i had to make this patch:   https://github.com/odoo/odoo/issues/10833    and this fixed authentication problems.

2) all outgoing emails was than having FROM as the user email and reply to catchall@xxxx.com and this was not correct, so as stated in most thread here and around web, i did remove the catchall in systems parameters (mail.catchall.alias)

3) after fixing the catchall problem, now email comes from user and there's no more REPLY TO, as without catchall it let you reply only to the sender, but it was still far from what i wanted.

4) i did try to modify the template, under the configuration -> email -> templates , but none of what i write in that template is beign read by odoo, and it does not change anything in email received.

5) to fix the sender issue, as i wanted to have one and only sender( FROM), noreply@xxxx.com i did modify the file ir_email_server.py   adding a static address for FROM , and it worked, so by now all seems to be ok.

6) i did try to send varius emails/communications, like direct message to a partner work perfectly as i wanted, but when i try to send an invoice or any kind of other attached documents the email arrive to the right TO receiver, but the REPLY TO field is set to the creator of the document, to fix this problem, as told before i did try to add REPLY TO in email templates but odoo is not taking care of that templates setup.

the problem at the end, it's not possible that a customer ask for an document to be sent, and once sent it comes from another odoo user email becouse(REPLY TO), if the customer have problems he will have to deal with who send the document, and it means that actual user that wanted to send the email with attachment, and NOT the user who did create the document.

i'd like also to fix the FIXED FROM sender issue, couse manually changing a PY File does not seem to be a fair solution.

thanks for the help, i read soo many pages around the web but none of the solution proposed could fix this problems.