Gmail API - 明文自动换行 [英] Gmail API - plaintext word wrapping

问题描述

使用 Gmail API 发送电子邮件时，它会在正文中放置硬换行符，每行大约 78 个字符.可以在这里找到一个类似的问题.

When sending emails using the Gmail API, it places hard line breaks in the body at around 78 characters per line. A similar question about this can be found here.

我怎样才能停下来?我只是想通过 API 发送纯文本电子邮件而无需换行.当前的格式看起来很糟糕，尤其是在移动客户端上(在 Gmail 和 iOS 邮件应用上测试过).

How can I make this stop? I simply want to send plaintext emails through the API without line breaks. The current formatting looks terrible, especially on mobile clients (tested on Gmail and iOS Mail apps).

我尝试了以下标题:

内容类型:文本/纯文本；charset=UTF-8

Content-Transfer-Encoding:quoted-printable

我错过了什么吗?

根据 Mr.Rebot 的建议，我也尝试过，但没有成功:

As per Mr.Rebot's suggestion, I've also tried this with no luck:

内容类型:混合/替代

编辑 2: 这是我发送的消息的确切格式(尝试使用和不使用 quoted-printable 标头:

EDIT 2: Here's the exact format of the message I'm sending (attempted with and without the quoted-printable header:

From: Example Account <[e-mail]>
To: <[e-mail]>
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: quoted-printable
Subject: This is a test!
Date: Tue, 18 Oct 2016 10:46:57 -GMT-07:00

Here is a long test message that will probably cause some words to wrap in strange places.

我获取此完整消息并对其进行 Base64 编码，然后使用以下 JSON 正文将其发布到 /gmail/v1/users/{my_account}/drafts/send?fields=id:

I take this full message and Base64-encode it, then POST it to /gmail/v1/users/{my_account}/drafts/send?fields=id with the following JSON body:

{
    "id": MSG_ID,
    "message": {
        "raw": BASE64_DATA
    }
}

推荐答案

您是否通过 quoted printable 编码器并将编码的内容值与标头一起发送或期望 API 为您编码?

Are you running the content through a quoted printable encoder and sending the encoded content value along with the header or expecting the API to encode it for you?

每 wikipedia 似乎您使用 = 少于 76 个字符作为任意行的最后一个字符，它们应该从结果中解码出来，恢复您的原始文本.

Per wikipedia it seems like if you add soft line breaks with = less than 76 characters apart as the last character on arbitrary lines, they should get decoded out of the result restoring your original text.

更新

尝试使用已引用可打印编码(base64 it)的内容发送此内容:

Try sending with this content whose message has been quoted-printable encoded (base64 it):

From: Example Account <[e-mail]>
To: <[e-mail]>
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: quoted-printable
Subject: This is a test!
Date: Tue, 18 Oct 2016 10:46:57 -GMT-07:00

Here is a long test message that will probably cause some words to wrap in =
strange places.

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