헤더 크기가 고정 된 최대 크기를 초과합니다

Question

XML 응답이 첨부 된 전자 메일을 마지막에 보내는 SAP HCI 시나리오가 있습니다. 파일에 20kb 크기가 있지만 수신기 하나만 있어도이 오류가 발생합니다.

com.sun.mail.smtp.SMTPSendFailedException : 552 5.3.4 헤더 크기가

Answer 1

확인 고정 최대 크기를 초과하면 그것을 알 :

그것은 SMTP 어댑터 채널 - 특정 구성의 . 설계 상 개발자는 첨부 파일의 원본과 머리글을 유일한 좋은 선택 (속성이 아니라 연민의 것)으로 선택해야합니다.

CPI 메시지의 모든 헤더는 SMTP (나를위한 나쁜 디자인)로 전송되므로 지정된 첨부 파일이나 다른 헤더로 인해 제한이 발생합니다. 그런 다음

msg.setHeader('aa', "<?xml version='1.0'?><root>" + "a"*256 + "</root>") 
msg.setHeader('ab', "<?xml version='1.0'?><root>" + "a"*1024*30 + "</root>") 

, 나는 클라우드 내부 SMTP에 메시지를 게시, 수신 반송 메시지 : 긴 텍스트 작은 길이와 AB와 AA :

내 가설을 증명, 나는 두 개의 헤더를 생성

This message was created automatically by the SMTP relay on XXXXXXXXXXXXXXXX. 

A message that you sent could not be delivered to all of its recipients. 
The following address(es) failed: 

    ilya.kuznetsov@domain 
    SMTP error from remote mail server after MAIL FROM:<ilya.kuznetsov@domain> SIZE=4019: 
    host XXXXXXXXXXXX [1.1.1.1]: 550 Administrative prohibition 2017-11-03-121-56439fc44a7dc0b43c28074ed7efe877 

------ This is a copy of the message, including all the headers. ------ 

Return-path: <ilya.kuznetsov@domain> 
... 
Date: Fri, 3 Nov 2017 12:00:20 +0000 (UTC) 
From: ilya.kuznetsov@domain 
To: ilya.kuznetsov@domain 
Subject: Hello world 2017-11-03T12:00:19.019Z 
MIME-Version: 1.0 
Content-Type: multipart/mixed; 
    boundary="----=_Part_69_482225443.1509710419985" 
aa: <?xml version='1.0'?><root>aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa</root> 
ab: <?xml version='1.0'?><root>aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa</root> 
SAP_MessageProcessingLogID: AFn8WlOMHKwYXS0KJbCcva0BG9Wh 
SAP_MplCorrelationId: AFn8WlOmx_9yZFXocsPbBYIjesC9 
SAP_PregeneratedMplId: AFn8WlPK-r5wMnCqVPDM-nHhsvmo 
scriptFile: stackoverflow_47077818.groovy 
scriptFileType: groovy 

------=_Part_69_482225443.1509710419985 
Content-Type: text/plain; charset=UTF-8 
Content-Transfer-Encoding: 7bit 

Hello world body 
------=_Part_69_482225443.1509710419985 
Content-Type: application/xml; name=aa 
Content-Transfer-Encoding: 7bit 
Content-Disposition: attachment; filename=aa 

<?xml version='1.0'?><root>aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa</root> 
------=_Part_69_482225443.1509710419985-- 

그래서 알 수 있듯이 편지에 사용되지 않는 관련없는 헤더가 SMTP 세션 중에 전송되어 오류의 원인 일 수 있습니다.

더 좋은 방법은 간단한 Javamail 코드로 간단한 Groovy 스크립트를 사용하는 것입니다.