Using the Email/send method replace to Email/set + EmailSubmission/set when send new email

[vttranlina]

When trying to send a new email via the front end.
I see the jmap request has composited the Email/set + EmailSubmission/set method
I believe we can optimize it by a single method Email/send
here is sample request when sending new email

{
  "using": [
    "urn:ietf:params:jmap:submission",
    "urn:ietf:params:jmap:mail",
    "urn:ietf:params:jmap:core",
    "urn:apache:james:params:jmap:mail:shares"
  ],
  "methodCalls": [
    [
      "Email/set",
      {
        "accountId": "c8753f6b5cb8ace1413b587896006cada03f7edd84c211ec03769c078418a75e",
        "create": {
          "2f6e06a0-d23a-11ee-bc63-b1419afd5e2d": {
            "mailboxIds": {
              "fdce9cb0-8ad7-11eb-ba04-fff8ae2f0c36": true
            },
            "subject": "test",
            "from": [
              {
                "name": "Van Tung TRAN",
                "email": "[email protected]"
              }
            ],
            "to": [
              {
                "name": "Van Tung TRAN",
                "email": "[email protected]"
              }
            ],
            "cc": [],
            "bcc": [],
            "replyTo": [
              {
                "name": null,
                "email": "[email protected]"
              }
            ],
            "htmlBody": [
              {
                "partId": "2f6db880-d23a-11ee-bc63-b1419afd5e2d",
                "type": "text/html"
              }
            ],
            "bodyValues": {
              "2f6db880-d23a-11ee-bc63-b1419afd5e2d": {
                "value": "<div>tttt<br><br></div>",
                "isEncodingProblem": false,
                "isTruncated": false
              }
            },
            "header:User-Agent:asText": "Team-Mail/0.11.3 Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/121.0.0.0 Safari/537.36"
          }
        }
      },
      "c0"
    ],
    [
      "EmailSubmission/set",
      {
        "accountId": "c8753f6b5cb8ace1413b587896006cada03f7edd84c211ec03769c078418a75e",
        "create": {
          "2f6e06a1-d23a-11ee-bc63-b1419afd5e2d": {
            "identityId": "af77b30d-6e7f-416b-8422-6e6646800124",
            "emailId": "#2f6e06a0-d23a-11ee-bc63-b1419afd5e2d",
            "envelope": {
              "mailFrom": {
                "email": "[email protected]"
              },
              "rcptTo": [
                {
                  "email": "[email protected]"
                }
              ]
            }
          }
        },
        "onSuccessUpdateEmail": {
          "#2f6e06a1-d23a-11ee-bc63-b1419afd5e2d": {
            "mailboxIds/fdd4de40-8ad7-11eb-ba04-fff8ae2f0c36": true,
            "mailboxIds/fdce9cb0-8ad7-11eb-ba04-fff8ae2f0c36": null,
            "keywords/$seen": true,
            "keywords/$draft": null
          }
        }
      },
      "c1"
    ]
  ]
}

We can do it by Email/send

{
  "using": [
    "urn:ietf:params:jmap:submission",
    "urn:ietf:params:jmap:mail",
    "urn:ietf:params:jmap:core",
    "urn:apache:james:params:jmap:mail:shares"
  ],
  "methodCalls": [
    [
      "Email/send",
      {
        "accountId": "c8753f6b5cb8ace1413b587896006cada03f7edd84c211ec03769c078418a75e",
        "create": {
          "2f6e06a0-d23a-11ee-bc63-b1419afd5e2d": {
            "mailboxIds": {
              "fdce9cb0-8ad7-11eb-ba04-fff8ae2f0c36": true
            },
            "subject": "test",
            "from": [
              {
                "name": "Van Tung TRAN",
                "email": "[email protected]"
              }
            ],
            "to": [
              {
                "name": "Van Tung TRAN",
                "email": "[email protected]"
              }
            ],
            "cc": [],
            "bcc": [],
            "replyTo": [
              {
                "name": null,
                "email": "[email protected]"
              }
            ],
            "htmlBody": [
              {
                "partId": "2f6db880-d23a-11ee-bc63-b1419afd5e2d",
                "type": "text/html"
              }
            ],
            "bodyValues": {
              "2f6db880-d23a-11ee-bc63-b1419afd5e2d": {
                "value": "<div>tttt<br><br></div>",
                "isEncodingProblem": false,
                "isTruncated": false
              }
            },
            "header:User-Agent:asText": "Team-Mail/0.11.3 Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/121.0.0.0 Safari/537.36"
          }
        },
        "onSuccessUpdateEmail": {
          "#2f6e06a1-d23a-11ee-bc63-b1419afd5e2d": {
            "mailboxIds/fdd4de40-8ad7-11eb-ba04-fff8ae2f0c36": true,
            "mailboxIds/fdce9cb0-8ad7-11eb-ba04-fff8ae2f0c36": null,
            "keywords/$seen": true,
            "keywords/$draft": null
          }
        }
      },
      "c0"
    ]
  ]
}

Reference: linagora/tmail-backend#188

[chibenwa]

Email/send was designed to handle PGP encrypted mailbox.

For the sake of inter-operability I prefer we currenlty stick to Email/set + EmailSubmission/set