目前正在将网站从PHP 5.2迁移到PHP 5.6 Web服务器。
标题已发出：
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在hotmail中收到的标题：
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Return-Path: *********
X-OriginalArrivalTime: 26 Nov 2015 12:41:08.0908 (UTC) FILETIME=[B96B96C0:01D12847]
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Line＆＃34; iVBORw0KGgoAAAANSUhEUgAAABQAAAAiCAMAAABODAmPAAAByFBMVEUAAACdPTedPTehQDqiQDqh＆＃34;缺少，无法弄清楚原因。如果附件只有1个base64行，那么它将被删除，文件将作为空白接收。
在迁移到新服务器之前，代码在文件头和base64内容之间有换行符，但PHP 5.6新安全更新要求头不能包含任何空行（Error with PHP mail(): Multiple or malformed newlines found in additional_header）