I, too, have referred to the debian.org document to which you link. I have spent more time linking to https://samhobbs.co.uk/2013/12/raspberry-pi-email-server-part-1-postfix, which is a bit dated. I have written my own guide which works for me. If you (or anyone else) /msg me an email address, I'll gladly send you a copy with a few caveats.

Q1) Is gitlab a better source host than github (or google)?

How long is a piece of string? Everything is a compromise and it must depend on how those compromises fit your use case. If you are trying to build a library of code for a CV, Github is where people will start looking. I run my own server, turned off most of the time, using gogs https://gogs.io/, which ISTR is available on apt.

Q2) How do I silence the mail queue?

If by "silence" you mean "purge obsolete entries", sudo postsuper -d ALL is another option.

"It seemed to me I needed "someone" dedicated to being the mailchimp, who is not in the sudo group" is not my experience.

Q3) Should I substitute sammy for root in the above?

I'm not sure. I have a dedicated Pi running postfix, so root and any "boss" user of postfix are essentially the same, so I haven't had to work through your problem.

3.1 - Unattended upgrades

Raspbian (or whatever it's called now) comes with this set up by default. The file contains lots of comments, removed below:

dr@mail:~ $ cat /etc/apt/apt.conf.d/50unattended-upgrades
Unattended-Upgrade::Origins-Pattern {
        "origin=Debian,codename=${distro_codename},label=Debian-Securi
+ty";
};
Unattended-Upgrade::Package-Blacklist {
};

[download]

3.2 /etc/hosts

dr@mail:~ $ cat /etc/hosts
127.0.0.1       localhost mail
::1             localhost ip6-localhost ip6-loopback
ff02::1         ip6-allnodes
ff02::2         ip6-allrouters

127.0.1.1       mail

[download]

Q4) What does /etc/aliases look like on a working install

dr@mail:~ $ sudo cat /etc/aliases
[sudo] password for dr:
# See man 5 aliases for format
#postmaster:    root
postmaster:    dr
root:          dr

[download]

Regards,

John Davies

In reply to Re: [OT] Completing a debian install with the appropriate trimmings by davies
in thread Google scripts, google, and email by Aldebaran

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