Setup mail-server from the beginning

Hi everybody,
I’m planning to eventually run my own mail-server on my TO. I’m not certain how to get started, though. Maybe I can get some advice here.

Some initial questions:

  • I have purchased a domain name. Do I need a static IP-address as well?
  • I believe it to be most practical to create an LXC and install iRedMail in it. Or is there another, more sensible approach?
  • I’m afraid, my current lxc-config needs some tweaking:
    ~# lxc-checkconfig
--- Namespaces ---
Namespaces: enabled
Utsname namespace: enabled
Ipc namespace: enabled
Pid namespace: enabled
User namespace: enabled
Network namespace: enabled

--- Control groups ---
Cgroups: enabled

Cgroup v1 mount points:
/sys/fs/cgroup/cpuset
/sys/fs/cgroup/cpu
/sys/fs/cgroup/cpuacct
/sys/fs/cgroup/blkio
/sys/fs/cgroup/memory
/sys/fs/cgroup/devices
/sys/fs/cgroup/freezer
/sys/fs/cgroup/net_cls
/sys/fs/cgroup/perf_event
/sys/fs/cgroup/pids
/sys/fs/cgroup/debug
/sys/fs/cgroup/systemd

Cgroup v2 mount points:

Cgroup v1 clone_children flag: enabled
Cgroup device: enabled                                                              
Cgroup sched: enabled
Cgroup cpu account: enabled
Cgroup memory controller: enabled
Cgroup cpuset: enabled

--- Misc ---
Veth pair device: enabled, loaded
Macvlan: enabled, not loaded
Vlan: enabled, not loaded
Bridges: enabled, not loaded
Advanced netfilter: enabled, not loaded
CONFIG_NF_NAT_IPV4: enabled, loaded
CONFIG_NF_NAT_IPV6: enabled, not loaded
CONFIG_IP_NF_TARGET_MASQUERADE: enabled, loaded
CONFIG_IP6_NF_TARGET_MASQUERADE: enabled, not loaded
CONFIG_NETFILTER_XT_TARGET_CHECKSUM: enabled, not loaded
CONFIG_NETFILTER_XT_MATCH_COMMENT: enabled, loaded
FUSE (for use with lxcfs): enabled, loaded

--- Checkpoint/Restore ---
checkpoint restore: missing
CONFIG_FHANDLE: missing
CONFIG_EVENTFD: enabled
CONFIG_EPOLL: enabled
CONFIG_UNIX_DIAG: missing
CONFIG_INET_DIAG: missing
CONFIG_PACKET_DIAG: missing
CONFIG_NETLINK_DIAG: missing
File capabilities:

Note : Before booting a new kernel, you can check its configuration
usage : CONFIG=/path/to/config /usr/bin/lxc-checkconfig

What are your experiences? What’s your advice? Any hints welcome!

I am also trying to setup mail server. I used iredmail in a container but it only allows to use it with nginx webserver and i want apache2. I am slowly trying to reverse engeneer what actually iredmail script is doing, simplify it and use with apache.