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Re:Show HN: IOU – Split shared expenses by cvs268 on Wednesday August 21, 2019 @09:04AM (#20756790)
> just send an email with a confirmation link to see if it actually works.

Please don't enable anyone to just send emails to arbitrary email-addresses through you. That's how your email/domain will quickly get marked for SPAM.

At the very least, put in place a rate-limit per email-id (and source-ip too maybe). Otherwise i can simply keep entering email-ids of people to spam.

Re:Show HN: IOU – Split shared expenses by cvs268 on Wednesday August 21, 2019 @11:25AM (#20758112)
Why the -1's ? Isn't this a genuine concern to avoid getting on a SPAM blacklist? What am i missing?...