Action_Sendto for Sending an Email

Send Email Intent

when you will change your intent.setType like below you will get

intent.setType("text/plain");

Use android.content.Intent.ACTION_SENDTO to get only the list of e-mail clients, with no facebook or other apps. Just the email clients.
Ex:

new Intent(Intent.ACTION_SENDTO);

I wouldn't suggest you get directly to the email app. Let the user choose his favorite email app. Don't constrain him.

If you use ACTION_SENDTO, putExtra does not work to add subject and text to the intent. Use Uri to add the subject and body text.

EDIT:
We can use message/rfc822 instead of "text/plain" as the MIME type. However, that is not indicating "only offer email clients" -- it indicates "offer anything that supports message/rfc822 data". That could readily include some application that are not email clients.

message/rfc822 supports MIME Types of .mhtml, .mht, .mime

Using Android Intent.ACTION_SEND for sending email

Intent email = new Intent(android.content.Intent.ACTION_SEND);  
email.setType("application/octet-stream");

EDIT:

You could try setting the type to "message/rfc822" as well.

try this...

ACTION_SEND force sending with email

Try to setType message/rfc822 instead of text/plain

Action send mail to with file Android 11

solved with replacing:

Intent email_intent = new Intent(Intent.ACTION_SEND);
email_intent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);

and in <manifest> </manifest> putting:

<queries>
    <intent>
        <action android:name="android.intent.action.SEND"/>
        <data android:mimeType="*/*" />
    </intent>
</queries>

Android Studio mailto Intent doesn't show subject and mail body

try out this code, it worked for me.

Intent intent = new Intent(Intent.ACTION_SENDTO);
intent.setData(Uri.parse("mailto:")); // only email apps should handle this
intent.putExtra(Intent.EXTRA_EMAIL, new String[]{email});
intent.putExtra(Intent.EXTRA_SUBJECT, "Subject here");
intent.putExtra(Intent.EXTRA_TEXT,"Body Here");
if (intent.resolveActivity(getPackageManager()) != null) {
    startActivity(intent);
}

also add intent filter in android manifest.

<activity ...>
<intent-filter>
    <action android:name="android.intent.action.SENDTO" />
    <data android:scheme="mailto" />
    <category android:name="android.intent.category.DEFAULT" />
</intent-filter>

Sending email with attachment using SENDTO on some devices doesn't work

Try to resolve activity via ACTION_SENDTO, but actually sending via ACTION_SEND.

Intent intent = new Intent(Intent.ACTION_SENDTO, Uri.fromParts(
                    "mailto", "", null));
            intent.putExtra(Intent.EXTRA_SUBJECT, title);
            intent.putExtra(Intent.EXTRA_TEXT, text);
            intent.putExtra(Intent.EXTRA_STREAM, getSnapshotUri(snapshot, context, event));

            List<ResolveInfo> resolveInfos = context.getPackageManager().queryIntentActivities(intent, 0);
            if (resolveInfos.size() == 0) {
                new AlertDialog.Builder(context)
                        .setMessage(R.string.no_mail_app)
                        .setPositiveButton(R.string.ok, null)
                        .show();
            } else {
                String packageName = resolveInfos.get(0).activityInfo.packageName;
                String name = resolveInfos.get(0).activityInfo.name;

                intent.setAction(Intent.ACTION_SEND);
                intent.setComponent(new ComponentName(packageName, name));

                context.startActivity(intent);
            }