Question

Virtualmin email problem

Posted August 5, 2013 11.2k views
Hi, I have installed virtualmin on centos everything is working fine, but I am not able to go to https://domain.com:20000 for email i.e. I am not able to access email. I am able to send email from the virtualmin/webmin but I am not able to receive any emails. How do I access the webmail i.e. https://domain.com:20000 and how can I receive emails? Thanks for your help in advance.
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shyamsukhamit
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shyamsukhamit

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20 answers
kamaln7 August 5, 2013
What's the output of this command (as root)? 

netstat -plutn | grep 20000
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shyamsukhamit August 5, 2013
Thanks for your reply @kamal
when I give this command in putty there is no output.
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shyamsukhamit August 5, 2013
Any further help regarding this ??
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pablo August 5, 2013
Do you have a firewall enabled? If so, have you checked that the necessary ports are open?
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shyamsukhamit August 6, 2013
Thanks for your reply @Pablo.
Port 25 is open that I have checked through telenet, how do I check whether firewall is enabled? from webmin >networking >linux firewall it seems to be enabled but I'm not confirm.
Is there any thing that needs to be checked @Pablo
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shyamsukhamit August 6, 2013
Now when I rebooted the system I am able to access the https://domain.com:20000.

But still I am able not receiveing emails.
Thanks for your further help
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shyamsukhamit August 6, 2013
The emails bounced back today....
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kamaln7 August 6, 2013
@shyamsukhamit: Do you have proper MX records on your domain name?
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shyamsukhamit August 6, 2013
ns1.domain.com. with priority of 5 is the only MX record I have.
Do I need to put anything else?
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shyamsukhamit August 6, 2013
while googling I found a command and its result is as follows , might be if can be of any help

sudo netstat -an | grep :25
[sudo] password for name:
tcp 0 0 0.0.0.0:25 0.0.0.0:* LISTEN
tcp 0 0 :::25 :::* LISTEN
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kamaln7 August 6, 2013
Try waiting a couple of hours for DNS to propagate and try sending an email again.
Do you have an A record for ns1?
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hypertextsol August 6, 2013
No I don't have A record for ns1 in my DNS panel. Do I need to create?
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kamaln7 August 6, 2013
Yes, you have to create an A record to that ns1 resolves to your droplet's IP address and therefore allowing it to accept mail since the MX records point to ns1.
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shyamsukhamit August 6, 2013
I would like to inform you that ns1 is my host name, is it good to create an A record with that?
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shyamsukhamit August 6, 2013
thanks @kamal it is working now
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kamaln7 August 6, 2013
Yes, it's actually recommended to create a DNS entry for your hostname.
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kamaln7 August 6, 2013
Awesome!
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shyamsukhamit August 6, 2013
@kamal , now what are these spf ,text records & reverse IP.
How should I add & setup these records..

Again thanks for your help
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shyamsukhamit August 6, 2013
Should I add the A record, MX & other thigns for every addon domain ??
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kamaln7 August 6, 2013
@shyamsukhamit: Yes, you should add them for every domain.

Reverse IP/rDNS is automatically set to your droplet's hostname on our control panel.

As for SPF records, take a look at this article: https://www.digitalocean.com/community/articles/how-to-use-an-spf-record-to-prevent-spoofing-improve-e-mail-reliability
How To use an SPF Record to Prevent Spoofing & Improve E-mail Reliability
by Pablo Carranza
A carefully tailored SPF record will reduce the likelihood of your domain name getting fraudulently spoofed and keep your messages from getting flagged as spam before they reach your recipients.
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