Enable email sub addressing

[nuthub]

I wanted to use sub adressing and found, that I only had to change one thing in the Dovecot LDA part of my master.cf:

${recipient} -> ${user}@${domain}

That means

dovecot	  unix	-	n	n	-	-	pipe
	flags=DRhu user=vmail:vmail argv=/usr/lib/dovecot/deliver -d ${recipient}

became

dovecot	  unix	-	n	n	-	-	pipe
	flags=DRhu user=vmail:vmail argv=/usr/lib/dovecot/deliver -d ${user}@${domain}

Next time I reconfigure my postfix with the help of froxlor, this change will be reverted. Is there a way to preserve the change or could it become a sane default?

I'm not very concious with this modification, since my source is a serverfault thread only. Opinions / discussion / suggestions are welcome. In particular, I'm unsure, whether other entries in master.cf using ${recipient} should be modified as well.

[d00p]

Next time I reconfigure my postfix with the help of froxlor, this change will be reverted. Is there a way to preserve the change or could it become a sane default?

Why would there be a "next time" for configuring the services? This is meant to be done only once...

To "preserve" such customizations, you may simply copy the distribution configuration templates xml file (/lib/configfiles/), e.g. "my-bookworm.xml", adjust the name in the top to distinguish from the default one, something like

<distribution name="Debian" codename="Bookworm" version="my-custom" defaulteditor="/bin/nano">

customize as needed and select this as active distribution on the configuration page.

[nuthub]

Hi d00p,

Next time I reconfigure my postfix with the help of froxlor, this change will be reverted. Is there a way to preserve the change or could it become a sane default?

Why would there be a "next time" for configuring the services? This is meant to be done only once...

oh, ok, I didn't know that. My installation is rather old (200x, started with syscp), and I usually reconfigure the services at least with each new Debian version, for example. That's why I don't like customizations that don't live in a dedicated file (like a file in e.g. a /etc/dovecot/conf.d/99-mylocal.conf.

To "preserve" such customizations, you may simply copy the distribution configuration templates xml file (/lib/configfiles/), e.g. "my-bookworm.xml", adjust the name in the top to distinguish from the default one, something like

<distribution name="Debian" codename="Bookworm" version="my-custom" defaulteditor="/bin/nano">

customize as needed and select this as active distribution on the configuration page.

ok, I never used that mechanism. It's worth to think about it, but it seems that re-integrating my customizations in the template for next debian release still requires additional attention.

However, do you see any reason to not do the suggested modification (locally or in froxlor's template)? Is it a safe default or are there cases like alias domains, forwarding or something like that I'm not aware of and where it is not safe to do that modification?

Best Regards
nutcase

[d00p]

ok, I never used that mechanism. It's worth to think about it, but it seems that re-integrating my customizations in the template for next debian release still requires additional attention.

Well we try to be as close to the system defaults as possible and only adjust what is required for the integration of froxlor. I'm sure there is a reason for the devs to set -d ${recipient} and not -d ${user}@${domain} - and if that is what you need, alright, adjust it. That's why we have "initial service configuration".

And if you still want to / need to re-configure after a debian upgrade (which in most cases makes sense), we have a great helper tool for your: https://docs.froxlor.org/latest/admin-guide/cli-scripts/#config-diff

[nuthub]

Well we try to be as close to the system defaults as possible and only adjust what is required for the integration of froxlor.

good decision. That matches my idea of only customizing what's necessary.

While reading the dovecot docs, I noticed that LMTP seems to be the preferred way to deliver mail locally. That's another reason why the modification of master.cf does not seem to satisfy me. Are you planning to switch to using LMTP instead of LDA in a future froxlor release?

And if you still want to / need to re-configure after a debian upgrade (which in most cases makes sense), we have a great helper tool for your: https://docs.froxlor.org/latest/admin-guide/cli-scripts/#config-diff

That's great to know, thank you!

[d00p]

Are you planning to switch to using LMTP instead of LDA in a future froxlor release?

possible, but not before froxlor-3.0