On 30.01.24 20:20, Israel britto via Postfix-users wrote:
hello, I'm having a problem with spamhaus that I don't know how to solve.
Today I have 1 domain that uses 2 exclusive IPs 1.1.1.1 and 2.2.2.2
The PTR and rDNS entries are correctly configured:
1.1.1.1 > a1.domain.com
2.2.2.2 > a2.domain.com
a1.domain.com -> 1.1.1.1
a2.domain.com -> 2.2.2.2
My Postfix is behind a load balance, which performs round-robin balancing
between these 2 IPs, however, my server is configured with the helo ->
xpto.com.br Spamhaus is listing my IPs because it says that my HELO
address is not aligned with the rDNS of my IPs. Has anyone had this type
of problem and could help me with how to resolve it?
I have never seen anyone having this problem, also I have never see spamhaus
list IP address because of this.
In fact, refusing mail because of HELO inconsistence is against all SMTP
RFCs issued so far.
However, if your HELO string is invalid or not existing, it's somehow common
for some servers to refuse mail from you.
Since you did not provide us with your real address nor the error message
spamhaus provides when you check for your IPs, it's really hard to help you.
--
Matus UHLAR - fantomas, uh...@fantomas.sk ; http://www.fantomas.sk/
Warning: I wish NOT to receive e-mail advertising to this address.
Varovanie: na tuto adresu chcem NEDOSTAVAT akukolvek reklamnu postu.
Honk if you love peace and quiet.
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