Why do you have a cloudfare tunnel to home servers if the only thing that can access it is your VPN that originates from your home address? I may be misunderstanding you.
I am assuming that threshold would be logged in the postfix logs?
Excellent write up! I've saving this one for sure. How did you go about investigating this and troubleshooting? That deserves a write up by itself!
I appreciate everyones opinion, and I'm aware of the pro's con's of self hosting email, regardless of platform. With that being said, I had a question about hosting email from home hardware but tunneling traffic from an external site.
So I want to host my own email, i've done before and found it very fun and useful. I hosted it on digital ocean, but never went too far with it, just propped up a server, sent a few emails, and shut it down I'd like to host it at home so I can make use of existing hardware.
What are my options for tunneling traffic so I don't have to expose my home IP or home network directly to the internet? and also obviously bypass the issue of most isp's blocking email. Also, are there any other services that I should consider to help route my email? I've heard of services such as external mail relays that help improve deliverability and reduce the chance of email being marked as spam or blocked.
I genuinely find email admin to be very interesting, and think self hosting would be a great way to keep advancing my skills and learn more about security, etc.
I have an edge router x that keep crashing. I have not been able to find any rhyme or reason why, and by the time I pull the plug and turn it back on, any meaningful logs are gone.
What are you all using for some kind of centralized logging system? Gui would be really cool, but not necessary.
I have a jack of all trades Ubuntu server 22.04 so I'd prefer to install it there. Would prefer something that's easier to set up as opposed to something that's more complex, even if it comes with all the bells and whistles. Seems like rsyslog would be the best for that.