Hello, I need help with a problem relative the mail service. Today this error appeared when sending emails. "An error occurred while sending mail. The mail server responded: 451 4.3.0 <[email protected]>: Temporary lookup failure. Please check the message recipient "[email protected]" and try again" DONE STEPS: - I checked the forum for a solution and I get this thread. Seems that is a similar error. https://www.howtoforge.com/community/threads/mailing-temporary-lookup-failure.66286/ - I checked the amavis status and thisis the result: ● amavis.service - LSB: Starts amavisd-new mailfilter Loaded: loaded (/etc/init.d/amavis; generated) Active: active (running) since Mon 2020-10-05 15:02:42 UTC; 1h 19min ago Docs: man:systemd-sysv-generator(8) Tasks: 3 (limit: 4915) CGroup: /system.slice/amavis.service ├─2674 /usr/sbin/amavisd-new (master) ├─2781 /usr/sbin/amavisd-new (ch4-avail) └─2782 /usr/sbin/amavisd-new (ch4-avail) oct 05 15:37:42 server1.azuritetechs.com amavis[2782]: (02782-03) (!!)TROUBLE in check_mail: check_init2 FAILED: Could not open /etc/resolv.conf: No such file or directory at /usr/sbin/amavisd-new line oct 05 15:37:42 server1.azuritetechs.com amavis[2782]: (02782-03) (!)PRESERVING EVIDENCE in /var/lib/amavis/tmp/amavis-20201005T153742-02782-4C0jTt6J oct 05 15:37:42 server1.azuritetechs.com amavis[2781]: (02781-03) (!!)TROUBLE in check_mail: check_init2 FAILED: Could not open /etc/resolv.conf: No such file or directory at /usr/sbin/amavisd-new line oct 05 15:37:42 server1.azuritetechs.com amavis[2781]: (02781-03) (!)PRESERVING EVIDENCE in /var/lib/amavis/tmp/amavis-20201005T153742-02781-uT0WiW5H oct 05 16:17:42 server1.azuritetechs.com amavis[2781]: (02781-04) Negative SMTP response to data-dot (<[email protected]>): 451 4.3.0 Error: queue file write error, dt: 0.5 ms oct 05 16:17:42 server1.azuritetechs.com amavis[2781]: (02781-04) (!)YUYdy-kvbfzj FWD from <[email protected]> -> <[email protected]>, BODY=7BIT 451 4.3.0 from MTA(smtp:[127.0.0.1]:10025): 451 4.3.0 oct 05 16:17:42 server1.azuritetechs.com amavis[2781]: (02781-04) Blocked MTA-BLOCKED {TempFailedInbound}, [127.0.0.1] <[email protected]> -> <[email protected]>, Message-ID: <62ee7841f3ae0f0187adf1 oct 05 16:17:42 server1.azuritetechs.com amavis[2782]: (02782-04) Negative SMTP response to data-dot (<[email protected]>): 451 4.3.0 Error: queue file write error, dt: 0.4 ms oct 05 16:17:42 server1.azuritetechs.com amavis[2782]: (02782-04) (!)v3eZoSrabSmu FWD from <[email protected]> -> <[email protected]>, BODY=7BIT 451 4.3.0 from MTA(smtp:[127.0.0.1]: oct 05 16:17:42 server1.azuritetechs.com amavis[2782]: (02782-04) Blocked MTA-BLOCKED {TempFailedInbound}, [127.0.0.1] <[email protected]> -> <[email protected]>, Message-ID: <KfTjK - Then I checked the /etc/resolv.conf and this file seems that is linked to the /run/systemd/resolve/stub-resolv.conf. I cheked the status of the /run/systemd/resolve/stub-resolv.conf but the /run/systemd/resolve didn't exist. - Then I started the systemd-resolved.service service and the /run/systemd/resolve appeared with the /run/systemd/resolve/stub-resolv.conf and /run/systemd/resolve/stub-resolv.conf and the /run/systemd/resolve/resolv.conf inside but status of the amavis is the same. How I can resolve this problem? I use ISPConfig Version: 3.1.15p3 on Ubuntu Server 18.04.4 LTS. Thanks
Whats in the resov conf file now? Run this command and post the result: cat /etc/resolv.conf Did you install a GUI Linux system? As such problems normally do not appear on Linux servers, they are more common for desktop systems. See also: https://www.howtoforge.com/communit...-9-with-ispconfig-no-mail-send-receive.83457/
Hello till, Thanks for your quick reply. I use Ubuntu Server 18.04.4 LTS. This is the content of /etc/resolv.conf "# This file is managed by man:systemd-resolved(8). Do not edit. # # This is a dynamic resolv.conf file for connecting local clients to the # internal DNS stub resolver of systemd-resolved. This file lists all # configured search domains. # # Run "systemd-resolve --status" to see details about the uplink DNS servers # currently in use. # # Third party programs must not access this file directly, but only through the # symlink at /etc/resolv.conf. To manage man:resolv.conf(5) in a different way, # replace this symlink by a static file or a different symlink. # # See man:systemd-resolved.service(8) for details about the supported modes of # operation for /etc/resolv.conf. nameserver 127.0.0.53 options edns0 search home" Thanks
Ok, so ta least systemd genarated a file, What does: systemd-resolve --status show. And Try to restart amavis again with the command: systemctl restart amavis and check the mail.log again, amavis should not complain about a missing resolv.conf anymore.
This is the output text of the "systemd-resolve --status" command: "Global DNSSEC NTA: 10.in-addr.arpa DNSSEC NTA: 10.in-addr.arpa 16.172.in-addr.arpa 168.192.in-addr.arpa 17.172.in-addr.arpa 18.172.in-addr.arpa 19.172.in-addr.arpa 20.172.in-addr.arpa 21.172.in-addr.arpa 22.172.in-addr.arpa 23.172.in-addr.arpa 24.172.in-addr.arpa 25.172.in-addr.arpa 26.172.in-addr.arpa 27.172.in-addr.arpa 28.172.in-addr.arpa 29.172.in-addr.arpa 30.172.in-addr.arpa 31.172.in-addr.arpa corp d.f.ip6.arpa home internal intranet lan local private test Link 15 (vethaccff4c) Current Scopes: none LLMNR setting: yes MulticastDNS setting: no DNSSEC setting: no DNSSEC supported: no Link 13 (veth1400f0a) Current Scopes: none LLMNR setting: yes MulticastDNS setting: no DNSSEC setting: no DNSSEC supported: no Link 9 (veth615938f) Current Scopes: none LLMNR setting: yes MulticastDNS setting: no DNSSEC setting: no DNSSEC supported: no Link 7 (veth41f9e16) Current Scopes: none LLMNR setting: yes MulticastDNS setting: no DNSSEC setting: no DNSSEC supported: no Link 5 (docker0) Current Scopes: none LLMNR setting: yes MulticastDNS setting: no DNSSEC setting: no DNSSEC supported: no Link 4 (br-81e6348a8ecb) Current Scopes: none LLMNR setting: yes MulticastDNS setting: no DNSSEC setting: no DNSSEC supported: no Link 3 (eno2) Current Scopes: none LLMNR setting: yes MulticastDNS setting: no DNSSEC setting: no DNSSEC supported: no Link 2 (eno1) Current Scopes: DNS LLMNR setting: yes MulticastDNS setting: no DNSSEC setting: no DNSSEC supported: no DNS Servers: 192.168.1.1 DNS Domain: home" This is the output text after restart amavis, seems that the error doesn't appear: "● amavis.service - LSB: Starts amavisd-new mailfilter Loaded: loaded (/etc/init.d/amavis; generated) Active: active (running) since Mon 2020-10-05 19:02:42 UTC; 10s ago Docs: man:systemd-sysv-generator(8) Process: 4005 ExecStop=/etc/init.d/amavis stop (code=exited, status=0/SUCCESS) Process: 4020 ExecStart=/etc/init.d/amavis start (code=exited, status=0/SUCCESS) Tasks: 3 (limit: 4915) CGroup: /system.slice/amavis.service ├─4062 /usr/sbin/amavisd-new (master) ├─4072 /usr/sbin/amavisd-new (virgin child) └─4073 /usr/sbin/amavisd-new (virgin child) oct 05 19:02:42 server1.azuritetechs.com amavis[4062]: No decoder for .lrz oct 05 19:02:42 server1.azuritetechs.com amavis[4062]: No decoder for .lz4 oct 05 19:02:42 server1.azuritetechs.com amavis[4062]: No decoder for .rar oct 05 19:02:42 server1.azuritetechs.com amavis[4062]: No decoder for .rpm oct 05 19:02:42 server1.azuritetechs.com amavis[4062]: No decoder for .swf oct 05 19:02:42 server1.azuritetechs.com amavis[4062]: No decoder for .zoo oct 05 19:02:42 server1.azuritetechs.com amavis[4062]: Using primary internal av scanner code for ClamAV-clamd oct 05 19:02:42 server1.azuritetechs.com amavis[4020]: Starting amavisd: amavisd-new. oct 05 19:02:42 server1.azuritetechs.com amavis[4062]: Found secondary av scanner ClamAV-clamscan at /usr/bin/clamscan oct 05 19:02:42 server1.azuritetechs.com systemd[1]: Started LSB: Starts amavisd-new mailfilter." If a try to send a email I get the initial error "An error occurred while sending mail. The mail server responded: 451 4.3.0 <[email protected]>: Temporary lookup failure. Please check the message recipient "[email protected]" and try again" This is the /var/log/mail.log https://sharedfolder.chloroplastgames.com/index.php/s/iAR1IVXliV9NFVZ
Please try this, it's not a really good solution, it basically overrides what systemd did there with a working config file. Run the commands: mv /etc/resolv.conf /etc/resolv.conf_bak nano /etc/resolv.conf and enter this into the file: Code: nameserver 8.8.8.8 nameserver 8.8.4.4 Then save the file, restart amavisd: systemctl restart amavis and try to send an email to see if it work now.
I followed your instructions but when i try to send a mail I get the same error: "An error occurred while sending mail. The mail server responded: 451 4.3.0 <[email protected]>: Temporary lookup failure. Please check the message recipient "[email protected]" and try again"
Do dns lookups on your server work in general, try e.g.: ping -c1 google.com on the shell of the server. And please post the errors that you get in the mail.log file when you send the email that produces this error. Are you able to send emails to another email address that's on a different domain? Are you able to send yourself an email (send an email to the same address that you are logged in to the mail server with your email client, it should show up in inbox after a few seconds).
This is the result of the ping to google.com PING google.com (172.217.17.14) 56(84) bytes of data. 64 bytes from mad07s09-in-f14.1e100.net (172.217.17.14): icmp_seq=1 ttl=114 time=12.3 ms --- google.com ping statistics --- 1 packets transmitted, 1 received, 0% packet loss, time 0ms rtt min/avg/max/mdev = 12.363/12.363/12.363/0.000 ms This is the result of the ping to chloroplastgames.com, this is the domain of one of the sender address emails what are failing. PING chloroplastgames.com (85.50.124.107) 56(84) bytes of data. 64 bytes from 107.pool85-50-124.static.orange.es (85.50.124.107): icmp_seq=1 ttl=64 time=0.550 ms --- chloroplastgames.com ping statistics --- 1 packets transmitted, 1 received, 0% packet loss, time 0ms rtt min/avg/max/mdev = 0.550/0.550/0.550/0.000 ms This is the /var/log/mail.log after I tried to send a email (In the line 26 you can see the send attempt): https://sharedfolder.chloroplastgames.com/index.php/s/iAR1IVXliV9NFVZ I get hte same error when I try to send a email to my self, other address with the same domain of the sender or other address with other domain.
Lots of errors in that mail.log. Why do you not worry about them at all? Try to find out where those errors come from, then the issue you are trying to solve probably goes away. Is this a freshly installed system or did it work previously? Start with this: https://www.howtoforge.com/community/threads/please-read-before-posting.58408/ Are all services running? Code: systemctl --state=failed Check for error messages in other log files.
Regarding ping, that#s good, so name resolution is working again now. Regarding mail.log, seems as if at least the postfix-mysql package is missing. Which tutorial did you use to install your server?
I did not know these errors existed, sorry about that. I don't know how to fix them, that's why I'm asking for an expertise help. This is an old installation, previously it worked fine. These are the services that are failing: UNIT LOAD ACTIVE SUB DESCRIPTION ● apparmor.service loaded failed failed AppArmor initialization ● certbot.service loaded failed failed Certbot ● gitlab-runsvdir.service loaded failed failed GitLab Runit supervision process ● quotaon.service loaded failed failed Enable File System Quotas LOAD = Reflects whether the unit definition was properly loaded. ACTIVE = The high-level unit activation state, i.e. generalization of SUB. SUB = The low-level unit activation state, values depend on unit type. 4 loaded units listed. Pass --all to see loaded but inactive units, too. To show all installed unit files use 'systemctl list-unit-files'. In what log file I must check for errors? I checked the this post https://www.howtoforge.com/community/threads/please-read-before-posting.58408/ - This is the htf_report.txt file https://sharedfolder.chloroplastgames.com/index.php/s/zuwBF7Evp7k3yc2 - Do you use dovecot or courier as imap and pop3 server? I think that I used dovecot for imap and pop3 server. To install the IPCconfig I followed the The Perfect Server - Ubuntu 18.04 (Bionic Beaver) with Apache, PHP, MySQL, PureFTPD, BIND, Postfix, Dovecot and ISPConfig 3.1 tutorial. - Are you able to send and receive emails with webmail? I use roundcube for the webmail, normally I manage the mails with Thunderbird. I can't receive or send mails with webmail. When I try to send a mail I get this error, the same error when I sent a mail to an address with the same domain of the sender or to the same address. "SMTP Error (451): Failed to add recipient "[email protected]" (4.3.5 <localhost[127.0.0.1]>: Client host rejected: Server configuration error)." This is the mail.log after send an email from webmail: https://sharedfolder.chloroplastgames.com/index.php/s/iAR1IVXliV9NFVZ Thanks
No problem at all, we are here to help you fix the issues. Please run this command as root user: apt-get -y install postfix postfix-mysql postfix-doc mariadb-client mariadb-server openssl getmail4 rkhunter binutils dovecot-imapd dovecot-pop3d dovecot-mysql dovecot-sieve dovecot-lmtpd sudo and then run: service postfix restart and try to send email again.
Hello Till, I followed your instructions and then I can send and receive mails. Many thanks for the help!!! Now the problem is solved? Thanks
