Question

对于某个ISP，我一直在为每条消息遇到此异常：

Caused by: com.sun.mail.iap.BadCommandException: A33 BAD Invalid attribute list in FETCH
    at com.sun.mail.iap.Protocol.handleResult(Protocol.java:353)
    at com.sun.mail.imap.protocol.IMAPProtocol.fetchRFC822(IMAPProtocol.java:1378)
    at com.sun.mail.imap.IMAPMessage.getHeader(IMAPMessage.java:772)

经过检查，当程序试图像这样获取Message-ID标题时似乎会发生：

message.getHeader("Message-ID")

但出于某种原因，如果我在按名称获取标题之前这样做：

Enumeration<?> headers = m.getAllHeaders();

while (headers.hasMoreElements()) {
    Header header = (Header) headers.nextElement();
}

例外情况消失了。

此外，这里是我收到的标题列表：

[Return-Path, Received, Received, **Message-Id**, X-CT-Class, X-CT-Score, X-CT-RefID, X-CT-Spam, X-Authority-Analysis, X-CM-Score, Return-Path, DKIM-Signature, Received, List-Unsubscribe, **Message-ID**, MIME-Version, Reply-To, Subject, From, To, Date, Content-Type]

此处还有debug日志：

DEBUG: setDebug: JavaMail version 1.5.6
DEBUG: getProvider() returning javax.mail.Provider[STORE,imaps,com.sun.mail.imap.IMAPSSLStore,Oracle]
DEBUG IMAPS: mail.imap.fetchsize: 16384
DEBUG IMAPS: mail.imap.ignorebodystructuresize: false
DEBUG IMAPS: mail.imap.statuscachetimeout: 1000
DEBUG IMAPS: mail.imap.appendbuffersize: -1
DEBUG IMAPS: mail.imap.minidletime: 10
DEBUG IMAPS: closeFoldersOnStoreFailure
DEBUG IMAPS: trying to connect to host "imap.cox.net", port 993, isSSL true
* OK [CAPABILITY IMAP4 AUTH=PLAIN] Ready
DEBUG IMAPS: AUTH: PLAIN
DEBUG IMAPS: protocolConnect login, host=imap.cox.net, user=ym1abc, password=<non-null>
DEBUG IMAPS: AUTHENTICATE PLAIN command trace suppressed
DEBUG IMAPS: AUTHENTICATE PLAIN command result: A0 OK [CAPABILITY IMAP4rev1 UIDPLUS NAMESPACE QUOTA] LOGIN completed
DEBUG IMAPS: connection available -- size: 1
A1 SELECT INBOX
* 5439 EXISTS
* OK [UNSEEN 2] First unseen message
* OK [UIDVALIDITY 1339789718] UIDs valid
* OK [UIDNEXT 518252] Predicted next UID
* FLAGS (\Answered \Flagged \Deleted \Draft \Seen)
* OK [PERMANENTFLAGS (\* \Answered \Flagged \Deleted \Draft \Seen)] Permanent flags
* 0 RECENT
A1 OK [READ-WRITE] SELECT completed
2017-01-06 16:31:27,882 INFO  [main]         org.abc.del.ibx.main.Main     - 5439
A2 FETCH 1:20 (ENVELOPE INTERNALDATE RFC822.SIZE FLAGS BODYSTRUCTURE RFC822.SIZE RFC822.HEADER.LINES (X-PVIQ X-Campid X-Vitals X-PVIQ X-Originating-IP Received Message-ID Newsgroups Received-SPF X-Header-MasterId X-Header-CompanyDBUserName))
A2 BAD Invalid attribute list in FETCH
A3 FETCH 1 (RFC822.HEADER.LINES (Message-ID))
A3 BAD Invalid attribute list in FETCH
DEBUG IMAPS: IMAPProtocol noop
A4 NOOP
A4 OK NOOP completed
2017-01-06 16:31:28,854 ERROR [main] org.abc.del.ibx.utilities.Mutator     - Exception :> A3 BAD Invalid attribute list in FETCH
javax.mail.MessagingException: A3 BAD Invalid attribute list in FETCH;
  nested exception is:
    com.sun.mail.iap.BadCommandException: A3 BAD Invalid attribute list in FETCH
    at com.sun.mail.imap.IMAPMessage.getHeader(IMAPMessage.java:893)
    at org.abc.del.ibx.utilities.Mutator.parseMessage(Mutator.java:59)
    at org.abc.del.ibx.main.Main.processMessages(Main.java:147)
    at org.abc.del.ibx.main.Main.main(Main.java:69)

在列表中，我看到Message-Id标题重复。

所以我有几个问题：

造成异常的原因＆amp;什么是比首先获得所有标题更好的解决方案？在我的情况下，我需要逐个获取所有标题，因为我们将其记录在DB中。
导致问题的重复标题是什么？

Javamail：BAD FETCH中的属性列表无效

0 个答案: