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I haven't been on a mailing list for a while. Do you know if gmail or protonmail do the "correct" thing?
by stjohnswarts 5y ago
I haven't been on a mailing list for a while. Do you know if gmail or protonmail do the "correct" thing?
- matheusmoreira 5y agoGood question. I don't think there's a way to set mail headers on gmail or protonmail web interfaces. I'm under the impression some headers are required. Message IDs, I think.