My apologies, you are correct i had the wrong IP address.
mathieu l
Le 20/03/2026 à 12:17, Paweł Leśniak via mailop a écrit :
Thanks for all responses.
Actually MX is at 150.254.201.4 (mail.ifmpan.poznan.pl), however
150.254.201.17 also is sending emails (mostly local).
Unfortunately there is also a problem with whois
database: <mail.ifmpan.poznan.pl <https://matrix.spfbl.net/en/
mail.ifmpan.poznan.pl>> non-compliance domain.
For poznan.pl there is whois registry which is not very simple to find
(https://domeny.poznan.pl/domeny/app/index.php). I'm not aware of any
method to place whois record in public registry for ifmpan.poznan.pl domain.
Also, I can send e-mails to @gmail.com using the same mail servers but
different domain, so the problem is definitely with the domain not IPs.
Pawel
W dniu 20.03.2026 o 16:52, Laura Atkins via mailop pisze:
There is one listing for that IP and the listing page for that
blocklist says: A domain is considered non-compliant when the WHOIS
search result for that domain does not contain the email address of
the domain owner. Update the registration data and remove privacy
protection for this domain in WHOIS and wait one hour for the cached
result of this WHOIS query to expire.
Which listings are you seeing that you think Google is using?
laura
On 20 Mar 2026, at 15:31, mathieu l. via mailop <[email protected]>
wrote:
In my experience, Google uses common RBL services.
Your domain "ifmpan.poznan.pl" seems linked to the IP address
150.254.201.17. That IP address is still on some blocklists:
https://multirbl.valli.org/lookup/150.254.201.17.html
Mathieu L.
for the Koumbit Network
Le 20/03/2026 à 11:08, Paweł Leśniak via mailop a écrit :
One of our new email accounts (in ifmpan.poznan.pl domain) has been
compromised and we've been sending spam from Mar 13 10pm for about
24 hours.
All the other services are accepting mails now, just gmail is
blocking us. In Google postmaster tools there is not a single user-
reported spam.
On the "Compliance status" tab we meet all requirements, but we are
being treated as a subdomain of 'poznan.pl' domain which is a
regional domain, so all subdomains are primary. In this case I don't
see a way of reporting delivery issue with Google Postmaster Tools.
Best,
Pawel
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--
The Delivery Expert
Laura Atkins
Word to the Wise
[email protected]
Delivery hints and commentary: http://www.wordtothewise.com/blog
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