imap协议命令示例

hechengjin

以imap.richinfo.cn为例

$ telnet imap.richinfo.cn 143
Trying 113.108.212.118...
Connected to mail.cache.richinfo.cn.
Escape character is '^]'.
* OK RICHINFO System IMap Server Ready (caixuns[a23b08c3f4c6f94aec60b61edd245ed6
0923s])
1 capability     ---参数：无  功能：请求返回IMAP服务器支持的功能列表
* CAPABILITY IMAP4rev1 XLIST    ---响应：需要非标签响应：CAPABILITY
1 OK CAPABILITY completed   ---结果： OK    –执行完成  BAD   –指令不能识别或参数错误
2 login "hechengjin" "xxxxx"
2 OK login completed
3 noop   --参数：无  响应：不需特殊响应 功能：NOOP命令什么也不做，用来向服务器发送自动命令，防止因长时间处于不活动状态而导致连接中断，服务器对该命令的响应始终为肯定。
3 OK NOOP completed  --结果：  OK    –执行完成 BAD   –指令不能识别或参数错误
4 close
4 OK close completed
5 logout  ---参数：无  功能: LOGOUT命令使当前登陆用户退出登陆并关闭所有打开的邮箱，任何做了\DELETED标志的邮件都将在这个时候被删除。
* BYE IMAP4rev1 Server logging out  ---响应：需要非标签响应：BYE
5 OK logout completed  ----结果：  OK    –执行完成 BAD   –指令不能识别或参数错误
Connection closed by foreign host.

4 select inbox * 688 EXISTS * 0 RECENT * OK [UIDVALIDITY 1] UIDs valid * FLAGS (\Answered \Seen \Deleted \Draft) * OK [PERMANENTFLAGS (\Answered \Seen \Deleted \Draft)] Limited 4 OK [READ-WRITE] select completed 9 UID fetch 1:* (FLAGS) * 1 FETCH (UID 2589 FLAGS (\Seen)) ..... * 6 FETCH (UID 2598 FLAGS (\Seen \Answered)) .... * 8 FETCH (UID 2627 FLAGS (\Seen)) * 1547 FETCH (UID 7602 FLAGS (\Seen)) 9 OK Fetch completed 10 UID fetch 3069 (UID RFC822.SIZE FLAGS BODY.PEEK[HEADER.FIELDS (From To Cc Bcc Subject Date Message-ID Received Priority X-Priority References Newsgroups In-Reply-To Content-Type)])

先查看邮件夹列表
C30 LIST "" *
C31 LSUB "" *

thunderbird版收取邮件头
7 UID fetch 2072:2088 (UID RFC822.SIZE FLAGS BODY.PEEK[HEADER.FIELDS (From To Cc Bcc Subject Date Message-ID Received Priority X-Priority References Newsgroups In-Reply-To Content-Type X-CLIENT-INFO)])


其它
c24 FETCH 32757 BODY[HEADER]

根据UID获取MessageID
telnet imap.139.com 143
1 capability
2 login "hechengjin" "xxxxx"
3 select inbox
6 UID fetch 1:* (FLAGS)


根据UID获取MessageID
7 fetch 2072 body[header]