Exim：帶有標註到 LMTP 伺服器的收件人驗證

我想讓 Exim 在處理 RCPT ACL 期間通過呼叫 LMTP 伺服器來執行收件人驗證。

我有以下路由器：

virtual_account:
   domains = +virtual_domains
   driver = accept
   transport = dovecot

和運輸：

dovecot:
   driver = lmtp
   socket = /var/run/dovecot/lmtp

當 ACL 處理到達以下語句時：

warn
   domains = +virtual_domains
   verify = recipient/callout

未嘗試標註：

$ exim -d -bhc 1.2.3.4
...
RCPT TO: test@example.com
>>> using ACL "acl_check_rcpt"
...
processing "warn"
check domains = +virtual_domains
cached yes match for +virtual_domains
cached lookup data = example.com
example.com in "+virtual_domains"? yes (matched "+virtual_domains" - cached)
check verify = recipient/callout
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
Verifying test@example.com
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
Considering test@example.com
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
routing test@example.com
...
--------> virtual_account router <--------
local_part=test domain=example.com
checking domains
cached yes match for +virtual_domains
cached lookup data = example.com
example.com in "+virtual_domains"? yes (matched "+virtual_domains" - cached)
R: virtual_account for test@example.com
calling virtual_account router
virtual_account router called for test@example.com
 domain = example.com
queued for dovecot transport: local_part = test
domain = example.com
 errors_to=NULL
 domain_data=example.com localpart_data=NULL
routed by virtual_account router
 envelope to: test@example.com
 transport: dovecot
Cannot do callout: neither router nor transport provided a host list
----------- end verify ------------
warn: condition test succeeded in ACL "acl_check_rcpt"

我猜lmtp運輸無法進行標註，但我會很感激第二個意見。

AFAIR Exim 可以通過 Internet 套接字（您使用 Unix 套接字）通過 LMTP 進行收件人電子郵件驗證。

用於收件人存在驗證的 Exim LMTP 標註 - 該文件描述瞭如何使 Exim4 使用 exim 的 (LMTP) 標註實時檢查 Cyrus (IMAP) 郵箱的存在。

---

原始版本已在http://anfi.homeunix.org/exim/rtvcyrus.html.

上面的連結指向存檔版本。

引用自：https://serverfault.com/questions/527405