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A comment on Show HN: IOU – Split shared expenses. Parent comment

Re:Show HN: IOU – Split shared expenses by eddyg on Wednesday August 21, 2019 @08:54AM (#20756755)
I use:

    ^[^@]+@[^.]+\..+$
for a bit of sanity checking...
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Re:Show HN: IOU – Split shared expenses by dalbotex on Wednesday August 21, 2019 @10:35AM (#20757593)
Multiple @ symbols are absolutely valid, as long as they are properly quoted ;)
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