[SOLVED] T=remote_smtp defer (-53): retry time not reached for any host

[floown]

Hello,

On a new domain hosted by VestaCP on a Ubuntu Trusty I can receive mails. But I can not send (not from Thunderbird, and not from Roundcube).

Here is the bottom of /var/log/exim4/mainlog :

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2016-11-02 19:09:52 1c1zyx-0001RH-NK <= postmaster@mydomain.tld H=176.177.70.80.rev.sfr.net ([127.0.0.1]) [86.73.000.176] P=esmtpsa X=TLS1.2:DHE_RSA_AES_128_CBC_SHA1:128 A=dovecot_plain:postmaster@mydomain.tld S=2831 id=4f31652f-e281-4a29-25d0-bd127f56ab08@mydomain.tld
2016-11-02 19:09:52 1c1zyx-0001RH-NK == mycontact@anotherdomaine.tld R=dnslookup T=remote_smtp defer (-53): retry time not reached for any host

Whant can I do?
Thx for your help.

//EDIT : the server is a VPS with a private IP and a public IP. I have done a NAT IP association in http://domainforserver:8083/list/ip/ in Vesta configuration.
//EDIT 2 :

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# netstat -lp --inet
Active Internet connections (only servers)
Proto Recv-Q Send-Q Local Address           Foreign Address         State       PID/Program name
tcp        0      0 *:urd                   *:*                     LISTEN      20141/exim4     
tcp        0      0 hostname.domain:tproxy *:*                     LISTEN      4712/apache2    
tcp        0      0 *:8083                  *:*                     LISTEN      4623/vesta-nginx
tcp        0      0 hostname.domain.c:8084 *:*                     LISTEN      23364/nginx.conf
tcp        0      0 10.3.67.131:domain      *:*                     LISTEN      3643/named      
tcp        0      0 hostname.domain:domain *:*                     LISTEN      3643/named      
tcp        0      0 *:ftp                   *:*                     LISTEN      3487/vsftpd     
tcp        0      0 *:ssh                   *:*                     LISTEN      3696/sshd       
tcp        0      0 *:smtp                  *:*                     LISTEN      20141/exim4     
tcp        0      0 hostname.domain.cl:953 *:*                     LISTEN      3643/named      
tcp        0      0 10.3.67.131:8443        *:*                     LISTEN      4712/apache2    
tcp        0      0 *:2525                  *:*                     LISTEN      20141/exim4     
tcp        0      0 *:imaps                 *:*                     LISTEN      3546/dovecot    
tcp        0      0 *:pop3s                 *:*                     LISTEN      3546/dovecot    
tcp        0      0 *:mysql                 *:*                     LISTEN      3650/mysqld     
tcp        0      0 *:submission            *:*                     LISTEN      20141/exim4     
tcp        0      0 *:pop3                  *:*                     LISTEN      3546/dovecot    
tcp        0      0 *:imap2                 *:*                     LISTEN      3546/dovecot    
tcp        0      0 hostname.domain.:spamd *:*                     LISTEN      3706/spamd.pid  
tcp        0      0 10.3.67.131:http        *:*                     LISTEN      23364/nginx.conf
tcp        0      0 10.3.67.131:http-alt    *:*                     LISTEN      4712/apache2    
udp        0      0 *:24517                 *:*                                 3410/dhclient   
udp        0      0 10.3.67.131:domain      *:*                                 3643/named      
udp        0      0 hostname.domain:domain *:*                                 3643/named      
udp        0      0 *:bootpc                *:*                                 3410/dhclient   
udp        0      0 10.3.67.131:ntp         *:*                                 4158/ntpd       
udp        0      0 hostname.domain.cl:ntp *:*                                 4158/ntpd       
udp        0      0 *:ntp                   *:*                                 4158/ntpd       
root@imen:~# netstat --numeric-ports -l | grep 25
tcp        0      0 0.0.0.0:25              0.0.0.0:*               LISTEN     
tcp        0      0 0.0.0.0:2525            0.0.0.0:*               LISTEN     
tcp6       0      0 :::25                   :::*                    LISTEN     
tcp6       0      0 :::2525                 :::*                    LISTEN     
unix  2      [ ACC ]     STREAM     LISTENING     8258     /var/run/dovecot/stats

[floown]

In fact, I have done a hard reboot the VPS instead a soft reboot, and now it works !

[devesa]

Hi,

Post old, but if anyone wants to try ... Today I needed, and solved, see how I did:

Try,

#Delete files:

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rm /var/spool/exim4/db/*
rm /var/spool/exim4/input/*
rm /var/spool/exim4/msglog/*
rm /var/log/exim4/*

#Clear file:

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> /var/log/dovecot.log

#Then restart Exim4 OR Restart VPS

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service exim4 restart

[MrTank]

To this I can only add one thing. I also encountered this problem not long ago. The method described above did not help. Marvelous? It didn't help. And the reason was that on the server itself, port 25 was open, but after the server on the provider side, this port was closed. So if this method does not help anyone in solving the problem, then first check whether port 25 is closed on the provider’s side.

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telnet mxs.mail.ru 25