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Failed to connect to MySQL: (1203) User howardkn already has more than 'max_user_connections' active connectionsPath: ...!eternal-september.org!feeder3.eternal-september.org!news.eternal-september.org!eternal-september.org!.POSTED!not-for-mail From: Marco Moock Newsgroups: comp.mail.sendmail Subject: reject=553 5.3.0 127.0.0.2 due to unreachable DNS resolver Date: Sat, 1 Feb 2025 15:54:26 +0100 Organization: A noiseless patient Spider Lines: 38 Message-ID: <20250201155426.1494f774@ryz.dorfdsl.de> MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Injection-Date: Sat, 01 Feb 2025 15:54:30 +0100 (CET) Injection-Info: dont-email.me; posting-host="73a4fbbaf241bcd53866d3e9183572a0"; logging-data="142414"; mail-complaints-to="abuse@eternal-september.org"; posting-account="U2FsdGVkX19MGMtrf2HxJ32cA9LVqxK9" Cancel-Lock: sha1:Cfs4D2Xo9ckqEqPEAGWysT46/Es= Bytes: 2388 Hello! I had a situation where my DNS resolver was unreachable for my machine. root@pi-dach:~# grep FEATU /etc/mail/sendmail.mc FEATURE(`no_default_msa')dnl FEATURE(`require_rdns')dnl FEATURE(`use_cw_file')dnl FEATURE(`access_db', , `skip')dnl FEATURE(dnsbl,`dnsbl-1.uceprotect.net')dnl FEATURE(enhdnsbl,`zen.spamhaus.org', `"554 Connecting client IP address listed in Spamhaus. See https://check.spamhaus.org"', `127.0.0.2', `127.0.0.3', `127.0.0.4', `127.0.0.9', `127.0.0.10', `127.0.0.11')dnl FEATURE(dnsbl,`all.bl.blocklist.de')dnl FEATURE(`dnsbl', `bl.spamcop.net', `"Spam blocked see: http://spamcop.net/bl.shtml?"$&{client_addr}')dnl FEATURE(enhdnsbl,`dnsbl-2.uceprotect.net', `"454 4.7.1 Listed in uceprotect Level 2')dnl FEATURE(enhdnsbl,`dnsbl-0.uceprotect.net', `"454 4.7.1 Listed in uceprotect Level 0')dnl FEATURE(enhdnsbl,`dnsbl-3.uceprotect.net', `"454 4.7.1 Listed in uceprotect Level 3')dnl Jan 31 23:37:37 pi-dach sm-mta[1034127]: ruleset=check_relay, arg1=[157.230.63.40], arg2=157.230.63.40, relay=[157.230.63.40], reject=553 5.3.0 127.0.0.2 The remote machine gave : host pi-dach.dorfdsl.de[82.139.252.17] said: 553 5.3.0 127.0.0.2 (in reply to MAIL FROM command) If that is related to a non-resolvable domain (DNS timeout), what is the reason for this strange error message? The dnsbl features give back different messages. -- kind regards Marco Send spam to 1738420972muell@stinkedores.dorfdsl.de