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  • Cloudron falsely rejecting email based on spamhaus filters

    Unsolved Support mail spamhaus
    13
    2 Votes
    13 Posts
    486 Views
    d19dotcaD
    What's strange about this to me is I seem to be unaffected (so far at least), and I'm looking in Cloudron mail pages quite frequently. Not sure why but I am throwing this out there in case it has something to do with the region IP of the Cloudron servers? I'm located in Canada, in case that matters at all. I just wonder if there's a pattern for this perhaps with certain countries affected more than others, etc. Though I guess ultimately if Cloudron isn't properly accounting for blocked connections to Spamhaus and seeing a blocked connection as a listing, then that should still be fixed in the code if that's true. Sorry, ignore me I think, as I misunderstood the problem. I thought this was around Cloudron detecting that the IP of Cloudron was on the blocklist, but that would have no bearing on rejecting emails so I think I misunderstood. Sorry about that.
  • 0 Votes
    5 Posts
    267 Views
    jdaviescoatesJ
    @jdaviescoates said in URGENT: In a post on an originally unrelated thread about IPv6 issues @Gengar posted this link https://www.spamhaus.com/resource-center/successfully-accessing-spamhauss-free-block-lists-using-a-public-dns/ which I think explains what's going on with all these false positive spamhaus issues people are having: The TL;DR seems to be: fill in this form https://www.spamhaus.com/free-trial/sign-up-for-a-free-data-query-service-account/
  • False positive on SpamHaus

    Solved Support spamhaus email
    72
    1 Votes
    72 Posts
    6k Views
    C
    @neki The misconfiguration warning is for your IP and has no relevance for incoming mails. That warning is being shown because Spamhaus is not reponding correctly to the request from Cloudron and Cloudron is incorrectly interpreting that as your IP being blocklisted. It is nothing more than a display error though and should be fixed in the next release. If you are seeing incoming mails rejected due to Spamhaus listing then this is due to the DNSBL checking. The error may well be with Cloudron and how Spamhaus reports are interpreted, but that will be resolved if you deactivate the checks. @SansGuidon Had you removed Spamhaus from the DNSBL checks? I think the issue is (at least partly) to do with changes in the way Spamhaus processes queries (I noticed a lot of errors in the logs before deactivating Spamhaus altogether) and the way Cloudron interprets the results when errors are thrown. I have two Cloudron servers, both running version 8.3.2, but one on Ubuntu 22.04, the other on Ubuntu 24.04. Interestingly, the server running on 24.04 does not show the (false) email configuration error, but the one on 22.04. regularly does. As already mentioned, however, that is just an icorrect message and has no affect at all on deliverability as that will depend only on the receiving mailserver.
  • MAIL: false positives from spamhouse

    Unsolved Support mail spamhaus
    14
    1
    0 Votes
    14 Posts
    2k Views
    chymianC
    @nebulon , thanks for reply. in the first post, I copied a undeliverable testmail from spamhoaus to cloudron, b/c it was denieing the reception. here a little oversight: [image: 1720004240958-2024-07-03_12-50_cldrn_mail_deliv-fail.png] and they all look similar… [image: 1720004260697-2024-07-03_12-52_cldrn_mail-deniedy.png] all these hosts are N.O.T. blacklisted. I checked. also, false positives…
  • My OVH dedicated server is blacklist by SpamHaus

    Solved Support ovh spamhaus mail relay
    9
    1 Votes
    9 Posts
    1k Views
    girishG
    @gerard thanks for testing. A fix for this is coming next release. The issue is fairly recent. SpamHaus made some policy change when requests come from IPv6 addresses.
  • 1 Votes
    2 Posts
    390 Views
    girishG
    Good suggestion. For future reference: The current zen spamhaus check only covers SBL, SBLCSS, XBL and PBL blocklists. To query DBL, one can do host domain.com.dbl.spamhaus.org 127.0.0.1 on cloudron . Would be good to get this automated like the zen check