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爲了避免垃圾郵件以下是指示,從ZOHO如何在swiftmailer中將內容傳輸編碼更改爲8位MIME?
Until then please change the content-transfer encoding so as to avoid 8 bit mime to prevent DKIM signatures from failing.
如何更改內容傳輸編碼與Swiftmailer或yii2郵件得到了什麼?