Hellow! I am running postfix server under Ubuntu 18.04 LTS at Google Compute Engine. The hostname is <<yw-0919.doraji.xyz>>, open port is 25 only.
The server conf are bellow: <https://gitlab.com/soyeomul/Gnus/-/raw/karma/DKIM/smtp-conf.yw-0919> So now question. After i added 'permit_dnswl_client list.dnswl.org', very often i see these pattern's logs: #+begin_src text (postfix log) May 8 10:24:14 bionic190316003 postfix/smtpd[10918]: connect from lists.gnu.org[209.51.188.17] May 8 10:24:15 bionic190316003 postfix/smtpd[10918]: Anonymous TLS connection established from lists.gnu.org[209.51.188.17]: TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits) May 8 10:24:25 bionic190316003 postfix/smtpd[10918]: warning: 17.188.51.209.list.dnswl.org: RBL lookup error: Host or domain name not found. Name service error for name=17.188.51.209.list.dnswl.org type=A: Host not found, try again May 8 10:24:25 bionic190316003 postfix/smtpd[10918]: 810D83F064: client=lists.gnu.org[209.51.188.17] May 8 10:24:25 bionic190316003 postfix/cleanup[10965]: 810D83F064: message-id=<87y1zcqq5e.fsf@localhost> May 8 10:24:25 bionic190316003 postfix/qmgr[32274]: 810D83F064: from=<emacs-orgmode-bounces+soyeomul=doraji....@gnu.org>, size=7315, nrcpt=1 (queue active) May 8 10:24:25 bionic190316003 postfix/cleanup[10965]: 93B323F06A: message-id=<87y1zcqq5e.fsf@localhost> May 8 10:24:25 bionic190316003 postfix/qmgr[32274]: 93B323F06A: from=<emacs-orgmode-bounces+soyeomul=doraji....@gnu.org>, size=7448, nrcpt=1 (queue active) May 8 10:24:25 bionic190316003 postfix/local[10966]: 810D83F064: to=<soyeo...@doraji.xyz>, relay=local, delay=10, delays=10/0/0/0, dsn=2.0.0, status=sent (forwarded as 93B323F06A) May 8 10:24:25 bionic190316003 postfix/qmgr[32274]: 810D83F064: removed #+end_src As shown above log, the line 'RBL lookup error' is normal? Can i ignore that? And the others are OK. Any comments welcome! Sincerely, Linux fan Byung-Hee -- ^고맙습니다 _布德天下_ 감사합니다_^))//
