https://news.ycombinator.com/user?id=sfraxoHacker News RSShttps://hnrss.org/hnrss v2.1.1Sat, 12 Sep 2026 07:28:30 +0000nice stack. one question from someone who just built one of these: how do you handle inbound email threading? in my case the provider (SES) rewrites the Message-ID in transit, so In-Reply-To/References matching silently breaks. I ended up putting the ticket id in a plus address on the Reply-To, the envelope survives even when the headers don't. also curious how you handle webhook redeliveries, for me duplicates turned out to be the normal case, not the rare one.

]]>Fri, 11 Sep 2026 23:30:34 +0000https://news.ycombinator.com/item?id=49666854sfraxohttps://news.ycombinator.com/item?id=49666854https://news.ycombinator.com/item?id=49666854