@4Dgifts Arguably spammers don't care to get their mail delivered to all target networks. I haven't heard of them cracking DKIM keys yet.
DKIM large keys work against plausible deniability for mail senders in case of leaks. Rotate 512-bit keys (anti-spam only)?
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@4Dgifts I think DKIM does reduce the amount of spam and phishing that e.g. Googlers receive in their inboxes, so it is a bit useful
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