Not resolving A records

[banderson-cbt]

When I have A records in my config.json, their IPs don't get added to the sums.json. To further test I removed everything except "example.com": "A" and it generates what is basically an empty SPF:

{
    "< my domain >": {
        "records": [
            "v=spf1  -all"
        ],
        "sum": "4e15a0e95214c62159ddf7ffd277b47a85fe7f9aaf8c893924a0c8d69c3e8dea"
    }
}