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    Fully agree on the statement about full remote team or no remote team. I tried to manage a setup with an on-site team and a fully remote team I manage. The fact that I as a manager was off-site made it really difficult to close the communications gap which eventually led me to resign from my position as well.

    Those comments on Hangouts surprise me. I’m using it for over a year now and I’m really happy with the quality. I can also recommend to get a proper mic. All of my peers loved it when I got a studio microphone.

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      Are people unaware of ipcalc?

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        I can recommend sipcalc as well.

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          that looks even more appropriate for scripting

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        I’m in the emailing business, too. We are hosting our own MTAs with our own IP address space totaling under 500 EUR a month on bare-metal in a data center in Frankfurt, Germany.

        But you can have it even cheaper: You can get a /24 for around 100 EURs a month, you can announce that address space using cloud hosters such as Vultr who are super fast, reliable and not really expensive. You can use all of thoses IPs on one VM or split them up like you want.

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          Sounds like a good option, thanks! Can I know where could I buy the /24 range?

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            There are a couple of options:

            • Become a LIR (RIPE NCC member) yourself and apply for the /24 waiting list.
            • There are a couple of LIRs offering IP space to lease. They usually sponsor an ASN for you as well.
            • Become a LIR, go on secondary markets for IP space. There are a few, current IPv4 prices are up to 30 USD per IP. Regular LIR fee still apply though.

            We also got spare IP space available. PM me if you’re interested in leasing.

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            AWS supports hosting your own IP range on EC2 now, as well: https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/ec2-byoip.html

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              Good point! However it’s not yet available in all regions without all netblock statuses either.

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              Out of curiosity, how many watts of power are you getting at 500eur/mo? My vague recollection from a few years ago was that colo providers would hand out rack units for negligible money but charge something like 100eur/mo per ~200W since every Joule the servers consume has to be paid for twice - once at the point of use, then again for the HVAC required to dump the heat. (But all the colo providers I worked with had racks and ranks going spare because servers are so power dense now that their AC and PSUs couldn’t keep up if all the space was filled with hot servers)

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                My numbers are not really representative, but we pay around 30 EUR per 150 W ish. Luckily for us we are housed in a shared rack and heat was only once an issue where the data center provider was having an AC outage.

                I agree, some DCs are housing some super old hardware which are dissipating a lot of power in form of heat so they didn’t only maxing out the available power, but were also forced to keep spare units.

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                  Thanks! I have a feeling my numbers might be really off, it’s been a while

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                Question from someone who doesn’t know anything about MTAs: Why do you need so many IP addresses? Is it just that you need many servers to handle the amount of emails and thus 1 IP address per server, or is it something else that I am missing?

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                  It’s mostly the per IP reputation which can go southwards by the volume you are sending out.

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                    So you basically spread out the traffic over the IP addresses to keep your reputation stable. I’d love to know more about how that works. Do you rotate through the addresses? Have a container for every address?

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                That’s a cool approach actually. Would it also work with the kubenet network plugin? Granted, you’d have to play around with routing and masquerading I guess.

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                  I still got a big todo on my list: Decommission a old dedicated server with a lot of WordPress sites (a lot of small websites) on it and migrate the important sites to a VM at our new site.

                  But I’m now really tending to avoid using the computer over the weekend at all to just clear up my mind.