4 ms·
The patchwork of anti-phishing and anti-spamming measures like SPF and DKIM require DNS TXT records. Allowing mail from an IP address would likely be used almos
by hackerbee 6y ago
The patchwork of anti-phishing and anti-spamming measures like SPF and DKIM require DNS TXT records. Allowing mail from an IP address would likely be used almost exclusively for spamming.