CF1763318576614-tsm20251116095642

MXLIST.NET - mta-91-221.sparkpostmail.com

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mta-91-221.sparkpostmail.com checked at 2025-11-16T18:42:56.414Z 1176ms 34/34/34 100% R:5 allDone:true timedOut:false

AI analysis

mta-91-221.sparkpostmail.com points to IP number 192.174.91.221.

Other host names, for instance, mta-174-91-221.sparkpostmail.com share IP numbers with mta-91-221.sparkpostmail.com.

Perform reverse DNS lookup as well as normal forward DNS. Check Autonomous System Numbers (ASNs) and BGP connections between Internet Service Providers.
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