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Ian PriceFlag for United Kingdom of Great Britain and Northern Ireland

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Changing our firms ISP\SMTP handler - What steps do we need to take ?

I work for Wiseman Lee in East London

Our external IP address shows up as 212.115.52.53 - assigned to London Link (Our current ISP)

Our MX records are mail.wisemanle.co.uk 212.115.52.54 again assigned to london Link

As part of a network reshuffle we are switching to another ISP who will also handle the SMTP feed etc...

How would I proceed with this and what exactly is invloved

Will we be issued another IP address from our new ISP (This wll need to go into my firewal)
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tismetoo

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Excellent reply...

What is exactly DNS hosting - is that the company that hosts our domain names wiseman and wisemanlee.co.uk ?

Because they are not host by our current ISP they are hosts by the firm that host our website a company called VLI ?

How do I update A and MX records for our mail server - Old ISP - New ISP - Online ?

So what is DNS hosting ?
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tismetoo

DNS hosting is the term I have used to describe the company who's DNS server hold the Start of Authority ( and consequently the authoritative records ) for you domains. Using DNS tools ( I used www.demon.net/external but www.dnsstuff.com is popular) you can see that londonlink.net holds the SOA - are these your web hosting company?

These are the people you will need to submit the change request with - or whose online portal you will have to use to make the changes. I they are your old ISP you need to find a new provider and ask that they transfer your domain to them - your old ISP will release it after checking with you that it is OK to do so.
The change request will be something like:
Can you change the following records for our domain wisemanlee.co.uk
Old A record: mail.wisemanlee.co.uk. 1.2.3.4
New A record: mail.wisemanlee.co.uk. 4.3.2.1