How to minimize chances of one's domain being falsely blacklisted (uribl)

Solution 1:

How to minimize chances of one's domain being falsely blacklisted?

  1. Put your org name and preferred methods of contacts wherever one might look. Setting up a web server for all domains you are sending mail from is reasonable. Setting up a server with unrelated content ("parked") is a red flag.
  2. If upon registering the business with local authorities you received any publishable serial no. or tax ID from, put it on your website, next to your address. Helps verifying your business (still) exists in the jurisdiction claimed.
  3. Setup standard recipients like abuse@ as mailbox or alias and ensure mail will be seen by someone knowing what to do about them.
  4. Act on complaints, even when they are not using your preferred contact methods.
  5. Remove URI from mail templates/signature templates unless they point to a website that contains your business name & address (I suspected this may be the case, because being listed in one dbl is a stronger spam signal if such domain is found in your mail body)

Since your goal is also not be be negatively affected when being listed in some reputation database anyway, take these additional steps:

  1. Ensure your server matches current expectations from a technical perspective. What is possible, nice and expected tend to slowly shift over time, things previously only being regarded as nice are now being expected: some recipients now consider TLS & registering FCrDNS as a hard requirement. Checking all the technical boxes helps reduce the impact of dbl as well, because spam filtering is often multi-factorial these days.
  2. Read their rules & then register a free entry on the opposite sort of list, e.g. https://dnswl.org/ - some recipients disregard negative signals from other list maintainers if they also receive a positive signal like that

I do not believe your assumption that a single dbl having you listed is solely responsible for your mail delivery problems. The recipients postmaster would know. It is not unreasonable for mail operators to specifically reach out to each other to inquire, but preferably after applying the steps mentioned here (before, you would likely be told to start with the easy steps first).