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Can i use mailcow on a dynamic IP with DDNS-updater for my usecase? (lemmy.world)

submitted 11 months ago by kylian0087@lemmy.world to c/selfhosted@lemmy.world

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Hello everyone,

I am currently running a server with the Pterodactyl panel for various game servers, and it has been working great for several years. However, I would like to set up a system for Pterodactyl to send out password reset emails when necessary. I am considering using Mailcow on the same host specifically for this purpose. Currently, I am using an application named DDNS-Updater to automatically update all records on Cloudflare when my IP changes. While my IP doesn't change often, it can happen; it occurred once this year. Would this pose an issue for a mail server? If the emails end up in the spam folder, it is not a major concern since they are only password reset emails. However, it is crucial that the emails reach the intended recipients.

Thank you.

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[–] angelsomething@lemmy.one 1 points 11 months ago* (last edited 11 months ago)

I also have mailcow behind a dynamic in. I wrote a script that updates my cloud flare dns entries as soon as it detects that the ip changed. https://github.com/tinkermesomething/scripts-stuff/blob/main/cloudflare_DNS_updater.sh

I then use online services to check if they’re likely to get marked as spam