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Are you on IPv4 or IPv6? I've found that IPv6 is much more likely to have problems with deliverability than IPv4. When my own server was IPv4-only, I never had
by flyinghamster 10y ago
Are you on IPv4 or IPv6? I've found that IPv6 is much more likely to have problems with deliverability than IPv4. When my own server was IPv4-only, I never had problems, even with only an SPF record. When I enabled IPv6, I discovered that I couldn't get through to Comcast users without DMARC, and I also had to request my own /64 from the VPS provider, since the default single address supplied was part of a blacklisted /64 thanks to others. Unless you can get a squeaky-clean /64, forget about it.