SimpleParser - References field value is string instead of array

[sujithcphilip]

The references field in SimpleParser result is of type string (message IDs separated by comma) instead of array, when parsed an office 365 outlook email.

value in references is like "c490b551-830a-45bf-1761-xxxxxxxxxxxx@xxxxxx.rocket-cx.com,010001775c5a1324-b73d4ddf-1015-xxxx-94ac-02c4abxxxxxx-xxxxxx@email.amazonses.com"

{
....
inReplyTo:'<010001775c5a1324-b73d4ddf-1015-xxxx-94ac-02c4abxxxxxx-xxxxxx@email.amazonses.com>'
messageId:'<VI1PR05MB6734642888B8417CC3193xxxxxxxx@VI1PRxxxxxxxx.eurprd05.prod.outlook.com>'
references:'<c490b551-830a-45bf-1761-xxxxxxxxxxxx@xxxxxx.rocket-cx.com>,<010001775c5a1324-b73d4ddf-1015-xxxx-94ac-02c4abxxxxxx-xxxxxx@email.amazonses.com>'
...
}

It is working fine for emails from Gmail.

[CiscoKidxx]

@sujithcphilip - Running into same issue. Gonna hack around it but wanted to confirm your findings.

Amazon WorkMail:

    'references' => [
      '<90985eb4-624b-b382-92ca-019aaebdd67c@dextr.cloud>',
      '<0101017939804172-ac5e5a2a-de16-4af6-ad2b-76cd0a972dc4-000000@us-west-2.amazonses.com>',
      '<00bf01d74135$801dfcc0$8059f640$@dextr.cloud>'
    ]

O365:

'references' => '<da242f64-d663-7692-00c1-16057147ba49@dextr.cloud>,<01010179398d1416-3be6e3cc-d6ac-4506-9452-e796d556ea61-000000@us-west-2.amazonses.com>'

Hack:

      let refs = parsedMessage.headers.get("references");

      if (typeof refs == "string") {
        parsedMessage.headers.set("references", refs.split(","));
      }