Differences between MX retrieval in batch and single test

[stitch]

I assume rate limiting or timeouts, these are the only instances i could find with this issue at this moment.

Aalsmeer.nl

• https://batch.internet.nl/mail/aalsmeer.nl/7334539/#control-panel-13
• https://internet.nl/mail/aalsmeer.nl/1143630/#control-panel-13

Terneuzen.nl

• https://batch.internet.nl/mail/terneuzen.nl/7339078/
• https://internet.nl/mail/terneuzen.nl/1143628/

Heerbeeck.nl

• https://batch.internet.nl/mail/groep8.heerbeeck.nl/7334644/
• https://internet.nl/mail/groep8.heerbeeck.nl/1143640/

[bwbroersma]

Weird, so your saying this is rate limiting of the DNS resolving, because there is no MX here? I find this a bit extra weird because it has DNSSEC, since it's not showing it's bogus, it has to have received a signed NSEC(3) response for the non-existence of the MX record, right? (Or is the bogus check limited to a few requests?)