Commas in display names not parsed correctly

[LovingGarlic]

If an email address's displayName contains commas (ex: Joe Foo, PhD) mailparser will try to split it at each comma, resulting in multiple AddressObjects like so:
[
{
"address": "",
"name": "Joe Foo"
},
{
"address": "joe@example.com",
"name": "PhD"
}
]

I've had incoming messages with similar display names come through and cause issues because of this.