Emails not delivered
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root@my:~# cloudron-support --troubleshoot Vendor: QEMU Product: Standard PC (i440FX + PIIX, 1996) Linux: 6.8.0-124-generic Ubuntu: noble 24.04 Cloudron: 9.2.0 Execution environment: kvm Processor: AMD EPYC 9354P 32-Core Processor BIOS pc-i440fx-10.1 CPU @ 2.0GHz x 2 RAM: 8131468KB Disk: /dev/sda1 50G [OK] Root disk usage is OK (49%) [OK] Memory usage is OK (67%) [OK] Clock is NTP-synchronized [OK] node version is correct [OK] IPv6 is enabled in kernel. Public IPv6 address detected [OK] docker is running [OK] docker version is correct [OK] MySQL is running [OK] netplan is good [OK] DNS is resolving via systemd-resolved [OK] unbound is running [OK] IPv4 HTTPS to api.cloudron.io/api/v1/helper/public_ip [OK] IPv6 HTTPS to api.cloudron.io/api/v1/helper/public_ip [OK] IPv4 HTTPS to auth.docker.io/token [OK] IPv6 HTTPS to auth.docker.io/token [OK] IPv4 HTTPS to acme-v02.api.letsencrypt.org [OK] IPv6 HTTPS to acme-v02.api.letsencrypt.org [OK] nginx is running [OK] dashboard cert is valid [OK] dashboard is reachable via loopback [OK] No pending database migrations [OK] Service 'mysql' is running and healthy [OK] Service 'postgresql' is running and healthy [WARN] Service 'mongodb' is not running (may be lazy-stopped) [OK] Service 'mail' is running and healthy [OK] Service 'graphite' is running and healthy [OK] Service 'sftp' is running and healthy [OK] box v9.2.0 is running [OK] Dashboard is reachable via IPv4 (https://my.thivinfo.com) [FAIL] IPv6: could not load https://my.thivinfo.com [OK] Domain thivinfo.com is valid and has not expired ======== Summary ======== PASS: 29 WARN: 1 FAIL: 1 SKIP: 0 Failures: - IPv6: could not load https://my.thivinfo.com Warnings: - Service 'mongodb' is not running (may be lazy-stopped) For troubleshooting tips, see https://docs.cloudron.io/troubleshooting To share a full diagnostic dump on the forum, run: cloudron-support --send-diagnostics root@my:~# -
Hello,
For some days, I have had several emails not delivered.
In the logs, I can read:{ "ts": 1781015387801, "type": "deferred", "direction": "outbound", "uuid": "3118C384-EC0C-43D8-B705-41F57EEC074B.1", "messageId": null, "mailFrom": "<>", "spamStatus": null, "mailbox": null, "quotaPercent": null, "rcptTo": [ "<communication@XXX.com>" ], "message": "Tried all MXs", "delay": 65536, "failRecips": null, "mx": null, "_id": "3118C384-EC0C-43D8-B705-41F57EEC074B.1-1781015387801", "isOpen": true }Any idea what is happening ?
Cloudron 9.20
Any idea what is happening ?
likely your ipv6 issue I'd guess
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Hello @sebastienserre
Yes, I would also assume the same as @jdaviescoates
No IPv6 for a mailserver is getting used a block reason these days. -
But one is set on the bunny DNS (created through the API directly by Cloudron)
https://mxtoolbox.com/SuperTool.aspx?action=aaaa%3Amy.thivinfo.com&run=toolpageHe/Him - Native language: French
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But one is set on the bunny DNS (created through the API directly by Cloudron)
https://mxtoolbox.com/SuperTool.aspx?action=aaaa%3Amy.thivinfo.com&run=toolpage@sebastienserre it's probably the ipv6 reverse DNS aka rDNS aka PTR which you set via your VPS provider and not by your DNS provider
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It now seems OK https://www.whatsmydns.net/#PTR/2a02:4780:28:cf44::1 but Cloudron always fail in the Troubleshot command
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Moreover the Cloudron Trouble shoot command is asking me something different from the Cloudron mail settings....
How can I have a PTR on my.thivinfo.com asked by the troubleshot command and to mail.thivinfo.com ?
Mail.* is my mailserver location on the settings due to long time setup before I migrated to Cloudron) -
Hello @sebastienserre
The PTR record is set up from your hosting provider.
For Example Linode formy.cloudron.devwhere the mail subdomain is alsomy.cloudron.dev:
I just took your domain
my.thivinfo.comand get the IPv4 and IPv6:dig A my.thivinfo.com +short 185.97.146.212 dig AAAA my.thivinfo.com +short 2a02:4780:28:cf44::1Also checking the MX record:
dig mx thivinfo.com +short 10 mail.thivinfo.com.So the PTR/rDNS should resolve from the IPv4/IPv6 to
mail.thivinfo.com:dig -x 185.97.146.212 +short my.thivinfo.com. dig -x 2a02:4780:28:cf44::1 +short my.thivinfo.com.Both resolve to
my.thivinfo.comwhich is incorrect, and thus mail server are blocking your mails.
Go into your hosting provider interface not Bunny DNS and configure the rDNS/PTR record to be
mail.thivinfo.com. -
OK, so I had mail.thivinfo.com as PTR but the cloudron troubleshot report in 1st comment, said
[FAIL] IPv6: could not load https://my.thivinfo.comSo I do not understand....
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