[Pkg-mailman-hackers] postfix/smtpd[12870]: error: open database /var/lib/mailman3/data/postfix_domains.db: No such file or directory

[Sun Zhiyong]

hello,

I installed mailman3 on debian, it can visit http://server/mailman3/, but when login, it says Sever Error (500). in /var/log/mailman3/web/mailman-web.log there is a line:
SMTPRecipientsRefused: {u'xxx at xx.com': (451, '4.3.0 <xxx at xx.com>: Temporary lookup failure')}
# xxx at xx.com is superuser email address.

in postfix log file, there is:
Apr 22 18:05:53 mail postfix/smtpd[12870]: error: open database /var/lib/mailman3/data/postfix_domains.db: No such file or directory
Apr 22 18:05:53 mail postfix/smtpd[12870]: error: open database /var/lib/mailman3/data/postfix_lmtp.db: No such file or directory

how to solve it?

thank you.
Rex
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