Test emails go through but notifications on backups are blocked.

[thusband]

After setting up Notifications why would test email messages go through OK to my Gmail address but notifications from backups fail due to a blocked port 25? Are they two different systems?

Jan 04 07:01:06 pve postfix/qmgr[993]: 532044C0C47: from=<root@pve.home>, size=882, nrcpt=1 (queue active) Jan 04 07:01:06 pve postfix/smtp[537046]: connect to gmail-smtp-in.l.google.com[2a00:1450:400c:c00::1b]:25: Network is unreachable Jan 04 07:01:06 pve postfix/smtp[537046]: connect to gmail-smtp-in.l.google.com[108.177.15.27]:25: No route to host Jan 04 07:01:06 pve postfix/smtp[537046]: connect to alt1.gmail-smtp-in.l.google.com[2a00:1450:4013:c16::1a]:25: Network is unreachable Jan 04 07:01:06 pve postfix/smtp[537046]: connect to alt1.gmail-smtp-in.l.google.com[142.250.153.27]:25: No route to host Jan 04 07:01:06 pve postfix/smtp[537046]: connect to alt2.gmail-smtp-in.l.google.com[2a00:1450:4025:c03::1b]:25: Network is unreachable Jan 04 07:01:06 pve postfix/smtp[537046]: 532044C0C47: to=<my.email@gmail.com>, relay=none, delay=92826, delays=92826/0.01/0.04/0, dsn=4.4.1, status=deferred (connect to alt2.gmail-smtp-in.l.google.com[2a00:1450:4025:c03::1b]:25: Network is unreachable)
I've contacted my ISP about unblocking port 25 but haven't received a reply yet.

 

[Lukas Wagner]

Please do not create multiple threads about the same issue.

Let's continue here:
https://forum.proxmox.com/threads/cant-get-notifications-to-work-for-backup.139081/