4 ms·
My email is old, pre 2000, I got my own email server, and got about 50000 spam emails daily. About 500 goes beyond retry¹, IP ban and reverse DNS check, and rsp
by kuon 3y ago
My email is old, pre 2000, I got my own email server, and got about 50000 spam emails daily. About 500 goes beyond retry¹, IP ban and reverse DNS check, and rspamd let about 10 through daily.
I am not saying obfuscation is useless, just that email filtering works quite well.
¹: retry is to refuse emails from unknown servers by default and force them to retry later with 451 error.
- layer8 3y agoSimilar experience here. I still use SpamAssassin, in addition to DNSBL, and spam is very manageable, more like five per day on average. Amazingly, SpamAssassin produces zero false positives for me.
- Ayesh 3y ago> 50000 spam emails daily If I ever reach this level (still using my 2009 email address), I would just abandon this email address and start with a new one. > ¹: retry is to refuse emails from unknown servers by default and force them to retry later with 451 error. Interesting approach. Can you configure a low enough (try-again-in-X-seconds) value? Are you not worried that legitimate emails get dropped here? I imagine transactional emails to not try and resend later?
- kuon 3y ago> If I ever reach this level (still using my 2009 email address), I would just abandon this email address and start with a new one. Actually I have a business and this email is on all paper documents since nearly 30 years. > Interesting approach. Can you configure a low enough (try-again-in-X-seconds) value? Are you not worried that legitimate emails get dropped here? I imagine transactional emails to not try and resend later? It is part of the SMTP standard, all legitimate mail server actually respect that. Also, if there is a false positive, the sender should get a report email back.