Sponsor of the Day:
Jerkmate
https://bugs.launchpad.net/ubuntu/+source/apache2/+bug/1599223
Bug #1599223 “[2.0] confusing reverse DNS lookups because MAAS c...” : Bugs : apache2 package :...
Hi, we am running MAAS 2.0.0~beta8+bzr5134-0ubuntu1~xenial1. I noticed that it creates two PTR records for each address, for example here is the answer section...
bugs apache2 packagereverse dns0confusinglookups
https://autospf.com/spf-too-many-dns-lookups/
SPF Too Many DNS Lookups - How to Fix It | AutoSPF
Exceeding the SPF 10-DNS-lookup limit causes a permanent error (permerror) that breaks email authentication. Learn why it happens and how SPF flattening fixes...
many dnsspflookupsfix
https://autospf.com/blog/why-spf-record-checkers-report-too-many-dns-lookups/
Why do SPF record checkers report "too many DNS lookups" and how does that affect delivery? |...
Apr 18, 2026 - SPF record checkers report “too many DNS lookups” because the SPF standard (RFC 7208) limits SPF evaluation to 10 DNS-querying mechanisms (include, a, mx, ptr.
spf recordmany dnscheckersreportlookups
https://autospf.com/blog/reduce-dns-lookups-spf-avoid-exceeding-lookup-limits-guide-best/
How can I reduce DNS lookups reported by an SPF lookup to avoid exceeding limits? | AutoSPF
Apr 18, 2026 - You reduce DNS lookups in SPF by replacing lookup-heavy mechanisms (include, a, mx, ptr, exists) with explicit ip4/ip6 entries.
dns lookupsreducereportedspfavoid
https://rimuhosting.com/knowledgebase/linux/misc/bypassing-dns-servers-using-etc-hosts
Bypassing DNS server lookups by using /etc/hosts - RimuHosting
By setting up host entries in /etc/hosts, you can bypass doing DNS lookups for that host. This is especially helpful for testing your site before DNS changes...
dns serverusing etcbypassinglookupshosts