[nagonago]

(Spoiler warnings possibly, although I haven't solved anything...)

I am stuck there too. I'm almost certain it requires sending an email to a gmail address, but I'm not sure what that address is. I've already tried:

No response:

[e-mail] (hexadecimal representation of pi to 11 digits)

[e-mail] (hexadecimal representation of pi to 12 digits)

[e-mail] (IEEE double precision representation of pi, little endian)

Address not found:

[e-mail]

[e-mail]

[e-mail] (IEEE double precision representation of 3.14159265359, little endian)

[e-mail] (hexadecimal representation of 3.14159265359, no rounding)

[e-mail] (hexadecimal representation of 3.14159265359, rounding)

[e-mail] (ASCII string 3.14159265359 in hexadecimal form)

[e-mail] ('p' and 'i' ascii codes to hex)

But I'm starting to think maybe my idea of using the hexadecimal representation of pi is a red herring. I also hope I'm not hitting gmail's spam filters.

[y2bd]

rot13 hint, pretty involved hint that doesn't literally say the answer but is one step away

lbh ner ba gur evtug genpx gung vg vaibyirf fraqvat na rznvy, Cv (fcrpvsvpnyyl gur cerpvfvba bs Cv cebivqrq), naq urknqrpvzny ahzoref. lbh ner hasbeghangryl qbvat gur rapbqvat vapbeerpgyl, V jbhyq gel qbvat vg gur jnl n crefba jub qbrfa'g xabj nalguvat nobhg ahzoref, onfrf, sybngvat cbvag, rgp jbhyq qb vg. vg'f abg n "pyrire" fbyhgvba.

[geoelectric]

Thanks so much for this. I was also beating my head against the wall over-nerding the correct idea. This gave me what I needed and didn't really add any spoilers beyond the ones contained in the post above.

[nagonago]

Thank you so much, finally got it!