Website okay but no email

My sister foolishly let her domain expire with and her website disappeared. She renewed it immediately and I reset the nameservers for her. Her website came back immediately at my location and within a few hours later at her location.

That was two days ago!! Unfortunately she cannot receive email any more (at her and my location). The email settings are definitely correct at our ends. We could access old messages with her webhost ( They said that there is nothing wrong with the hosting and that emails are not coming through to them.

I can see no email settings that need to be changed at directnic and I have created a support ticket with them.

So fellow experts, what's your experience of this type of situation.
Surely nameserver changes should work simultaneously on HTTP and EMAIL
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EirmanChief Operations ManagerAsked:
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acbxyzConnect With a Mentor Commented:
Then yes, you have to adjust the mx records at
Right now, a nslookup returns:
$ nslookup -type=mx
Address:	mail exchanger = 100	mail exchanger = 200	mail exchanger = 300	mail exchanger = 400

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Instead it should return something like
$ nslookup -type=mx
Address:	mail exchanger = 10

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Mail server first query for MX records in dns. If there is no MX record defined for your domain this can prohibit mail delivery.

You can test mail delivery low level by doing this via "telnet yourdomain.tld 25"
Here is an example how it should work: You have to replace the mail adresses of course.
EirmanChief Operations ManagerAuthor Commented:
This is the error message I get when I send email to the non functioning email address ....
This is the mail system at host

I'm sorry to have to inform you that your message could not
be delivered to one or more recipients. It's attached below.

The mail system

<XXinfoXX@irishcobXsociety.coXm>: host[]
    said: 451 Can't connect to - psmtp (in reply to RCPT TO  command)
Note: Xs added above to avoid spam

I played around with telnet in XP with no results.
The commands available (?/) don't seem to resemble anyhing mentioned in that wiki page

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I have check your MX using MXTools, look like it is online now for last 60 minutes. So maybe you can received your email now.
khairilConnect With a Mentor Commented:
oopss.. talk too soon, I thought your host is ""

I got this when do lookup of your mail domain:

 mail lookup
it seems it just up for some few minutes ago. Try sending email back to the address.
Your MX records link mails to servers by, which is postini (or should I say google).
These servers don't accept mails for irishcobsociety:
451 Can't connect to - psmtp
The mail server at, the a record of your domain, does: ESMTP Exim 4.69 #1 Sun, 18 Sep 2011 19:24:23 +0100 
helo acbxyz
250 Hello localhost []
mail from: <me@mydomain.tld>
250 OK
rcpt to: <you@yourdomain.tld>
250 Accepted
221 closing connection

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Therefore it is a dns problem, you have to adjust your mx record to something like

TTL doesn't say how long a dns entry is up yet but how long other dns servers should cache this entry.
For this means any change of their settings can take up to 60 minutes until it is active over the world, while for eirman a correction will be active everywhere within 5 minutes.
EirmanChief Operations ManagerAuthor Commented:
Thanks for checking that khairil

I sent a few test emails ..... waited 5 minutes but nothing has arrived
 ... however I still haven't received any bounced error messages like before, so maybe something has changed!

I'll try again in an hour.
EirmanChief Operations ManagerAuthor Commented:
> Therefore it is a dns problem, you have to adjust your mx record
How do I do that acbxyz ?

Is this a directnic problem or a webhostingireland problem ?
Can I do anything or do I have to contact one of the above ?
I don't see any changes with your mx record yet.
Because gmail bounces with 4xx it says the sending server should try again later. Depending on the sender's mail server configuration it can take hours or days till an error will be reported.
To check your mx record you can use this command: (should work at windows and linux)
nslookup -type=mx
This is a bit weird:
If I got it right, are the nameservers of, and it is a different company than, whose nameservers are called

Your mail problem is at or

Why can't these companys choose clearly different domain names...
EirmanChief Operations ManagerAuthor Commented:
ns(1-3) are the nameservers as setup at

The server host name within the email program is .....

The hosting company is

Any mention of was an error ..... my apologies
EirmanChief Operations ManagerAuthor Commented:
Thanks everyone .... no directnic support on sunday .... will report back here in about 24 hours
EirmanChief Operations ManagerAuthor Commented:
Everything came back to normal this morning without any calls .... it was a hostingireland problem and nothing to do with directnic.

One thing I learnt from this question ...... I have a lot to learn !!

Now let's divvy up those points
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