Sending emails fails on extrenal email address

N

nishtman

Verified User
Joined
Nov 22, 2020
Messages
9
Hi every body

I have recently install DA on my CentOs 7 and every service works fine but mail.
Emails successfully received and even sending to email addresses that hosted on this server is OK but when I try to send emails to addresses like Gmail or Yahoo Mail it fails with "retry timeout exceeded",

I have try many ways but did not get the answer.
 
Did you install the latest exim and exim.conf files?
What does your /var/log/exim/mainlog say about the mails to Gmail?

Is port 25 TCP open incoming and outgoing in your firewall?
 
Thanks for your reply Richard,

I have installed the latest version of directadmin. Do I have to update exim seperatly?
This is the cotents of mainlog:

Code: 
2020-11-22 07:06:39 1kgP0s-0004kR-Qz ** [email protected] F= R=lookuphost T=remote_smtp: all hosts for 'gmail.com' have been failing for a long time (and retry time not reached)

Port 25 is open on firewall-cmd
this is the output of firewall-cmd --list-port:

Code: 
3031/tcp 2222/tcp 53/tcp 53/udp 25/tcp 25/udp 587/tcp 465/tcp 465/udp

Do you have any suggestion?
 
Are your resolvers (/etc/resolv.conf) working correctly?

Or it could be because your server IP is blocked.
 
Actually I think the problem is about nameservers or dns or something like that.
Could you tell me how to check host resolve and dns?
 
.thanks for your reply Peter

This is the content of my resolve.conf file:

Code: 
cat /etc/resolv.conf
# Generated by NetworkManager
search vm
# Automatically generated by OnApp
# Automatically generated by OnApp
# Automatically generated by OnApp
# Automatically generated by OnApp
# Automatically generated by OnApp
# Automatically generated by OnApp (6.0.0-238)
domain secd.ir
nameserver 212.33.203.139
nameserver 185.98.113.113
nameserver 185.98.114.114
nameserver 8.8.8.8
nameserver 8.8.4.4
 
Ping works!
This is the outputnof ping google.com:
Code: 
ping google.com
PING google.com (216.58.209.142) 56(84) bytes of data.
64 bytes from arn09s05-in-f14.1e100.net (216.58.209.142): icmp_seq=1 ttl=111 time=38.4 ms
64 bytes from arn09s05-in-f14.1e100.net (216.58.209.142): icmp_seq=2 ttl=111 time=32.4 ms
64 bytes from arn09s05-in-f14.1e100.net (216.58.209.142): icmp_seq=3 ttl=111 time=33.0 ms
64 bytes from arn09s05-in-f14.1e100.net (216.58.209.142): icmp_seq=4 ttl=111 time=32.8 ms
64 bytes from arn09s05-in-f14.1e100.net (216.58.209.142): icmp_seq=5 ttl=111 time=38.3 ms
64 bytes from arn09s05-in-f14.1e100.net (216.58.209.142): icmp_seq=6 ttl=111 time=35.5 ms
64 bytes from arn09s05-in-f14.1e100.net (216.58.209.142): icmp_seq=7 ttl=111 time=33.0 ms
64 bytes from arn09s05-in-f14.1e100.net (216.58.209.142): icmp_seq=8 ttl=111 time=33.4 ms
^C
--- google.com ping statistics ---
8 packets transmitted, 8 received, 0% packet loss, time 7011ms
rtt min/avg/max/mdev = 32.433/34.640/38.491/2.337 ms
 
nishtman said:
I have installed the latest version of directadmin. Do I have to update exim seperatly?
Click to expand...
Depending on how it's installed, yes.
You can always do it just to be sure. I hope this is fully correct.

Code: 
cd /usr/local/directadmin/custombuild
./build set exim yes
./build set eximconf yes
./build set eximconf_release 4.5
./build update
./build exim
./build eximconf
./build dovecot
./build dovecot_conf

Or just check.
Exim --version should read on one of the lines:
Exim version 4.94 #2
/etc/exim.pl should be version 31 (top of file)
/etc/exim.conf should be 4.5.33
 
Richard G said:
Depending on how it's installed, yes.
You can always do it just to be sure. I hope this is fully correct.

Code: 
cd /usr/local/directadmin/custombuild
./build set exim yes
./build set eximconf yes
./build set eximconf_release 4.5
./build update
./build exim
./build eximconf
./build dovecot
./build dovecot_conf

Or just check.
Exim --version should read on one of the lines:
Exim version 4.94 #2
/etc/exim.pl should be version 31 (top of file)
/etc/exim.conf should be 4.5.33
Click to expand...
Versions are same as what you wrote
 
First checking if your internet provider not blocked outgoing port 25

disable all firewall
telnet smtp-relay.gmail.com 25
telnet smtp-relay.gmail.com 587
telnet smtp-relay.gmail.com 465

or try telnet to other smtp
telnet smtp-mail.outlook.com 587

result ?

If only fail on port 25 and other port can work, then your provider are blocking smtp PORT ( 25 )
 
I dept that if provider block port 25.
And about firewalls, I have disable firewall-cmd with:
Code: 
systemctl stop firewalld
But this did not work.Is there any other firewall?
 
Thanks for your reply Richard and Peter, Both of you help me a lot.
how do you think about changing the default exim port from 25 to anything else?
 
Your local directadmin's exim already works at both 587 and 25 (smtp).
smtp with ssl/tls usually use 465
 
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