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u/Morgennebel

r/stalwartlabs r/homeassistant r/opnsense r/selfhosted
▲ 2 r/stalwartlabs

Error delivering as AAAA record missing?

Hej,

one of my last errors could not be delivered:

Your message could not be delivered to

the following recipients:

<vertrag@alfahosting.de> (connection to

'mx03.secure-mailgate.com' failed: lookup error:

DNS resolution error: DNS error: DNSSEC Negative

Record Response for mx03.secure-mailgate.com.

IN AAAA, Bogus)

I asked Manus AI to explain this to me but I still do not get it.

If an AAAA record is not found, why is the email not delivered via the A record of the target MX?

Thanks

reddit.com
u/Morgennebel — 10 days ago
▲ 2 r/homeassistant

Q: Shelly 4 Pro PM pushing 1.7 GByte via WiFi/WLAN?

Hej,

my WiFi reports massive WiFi access (to the Internet, not downloading like firmware updates) from multiple Shelly units:

  • Two Shelly 4Pro PM running firmware 1.7.5 uploaded ~ 1.7 GByte of data within 15 minutes
  • One Shelly Plug uploaded ~ 1.4 GByte of data within 15 mins.

All configurations are the same: disabled cloud, disabled websockets, disabled MQTT.

All Shelly are configured within Home Assistant and Bermuda is configured.

Is Bermuda triggering more WiFi data usage than a MS Teams session?

u/Morgennebel — 17 days ago
▲ 8 r/stalwartlabs

Q: 2nd MX (relay) with Stalwart with all DNS security?

Hej,

I have successfully installed Stalwart as primary MX with all the bells and whistles: DNS SEC, DKIM, SPF, DMARC, DANE. Stalwart is managing the certificates required for encryption and is managing DNS entries for all the security flags.

Now I want a backup secondary MX. If I use Stalwart (to keep everything simple and only have to manage one product) how does the second Stalwart manages their DNS entries? Will they interfere with the entries from the primary MX?

If I use another product the primary MX Stalwart still needs to be aware of the second MX...

reddit.com
u/Morgennebel — 26 days ago
▲ 0 r/selfhosted

Best 2nd MX selfhosted solution?

Hej,

I need a backup/secondary selfhosted mail server.

It's been a decade since administered MTAs and I would love to avoid sendmail and exim files. But I need something which could run on a Pi or small Thin client somewhere.

Any recommendations for an easy to administer solution for less than 10 domains?

TY

reddit.com
u/Morgennebel — 1 month ago
▲ 4 r/opnsense

Hej,

according to the Stalwart documentation at https://stalw.art/docs/server/reverse-proxy/caddy there is a reverse proxy definition required:

mail.example.com {
    reverse_proxy https://127.0.0.1:10443 {
        transport http {
            proxy_protocol v2
            tls_server_name mail.example.com
        }
    }
}

which works fine if I add this as a file to caddy.d.

However I struggle to create this entry in the web GUI - I am unable to define proxy_protocol v2 in the Reverse Proxy section. I have seen this in Layer 4 Proxies...

Is this also a Layer 4 proxy reverse definition?

Thanks

u/Morgennebel — 2 months ago