WWW.RTSAK.COM - hans-hold.math.upenn.edu
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hans-hold.math.upenn.edu checked at 2025-10-07T16:52:20.262Z 59ms 28/28/28 100% R:13hans-hold.math.upenn.edu
| A | 128.91.40.49🇺🇸 UPENN | ||||||
| PTR | hans-hold.math.upenn.edu | ||||||
math.upenn.edu
| MX | mxa-00390e01.gslb.pphosted.com | ||||||
| MX | mxb-00390e01.gslb.pphosted.com | ||||||
| A | 52.42.92.117🇺🇸 Amazon | ||||||
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hans-hold.math.upenn.edu serves as a mail server for postoffice.math.upenn.edu, newton.math.upenn.edu, alex.math.upenn.edu, euler.math.upenn.edu, besicovitch.math.upenn.edu and a few other domains.
For mail handling, moduli.math.upenn.edu serves as a mail server together with hans-hold.math.upenn.edu.
hans-hold.math.upenn.edu points to a single IP number: 128.91.40.49.
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