What if I want to run a mail server on IPs listed in the Policy Blocklist (PBL)?
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What if I want to run a mail server on IPs listed in the Policy Blocklist (PBL)?
If you have a dynamic IP, the best solution is to use your ISP’s outgoing mail relay as a smarthost. If your ISP does not provide an outgoing mail relay, there are many inexpensive commercial smarthost providers, which can be located by doing a websearch, or asking your ISP or hosting company.
If there is a need to run a mail server, it needs to be on a static IP with appropriate forward (A record) and reverse DNS (rDNS). Your ISP can help you get set up with that.
If you choose to run a mail server on a dynamic IP anyway, be prepared to face a lot of challenges.
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