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spinningjennie -> RE: Email advice to clients when change hosting server (11/22/2007 6:10:19)
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Thanks for your detailed reply CoreyBryant. quote:
Are you running this hosting company youself? Windows / *NIX? Do you have access to the name servers? Any reason changing the name servers? In effect, our company is providing the hosting service to a number of small websites, and using the hosting server of another hosting company in the United States. This hosting server is provided by a new company to what we’ve used in the past (cheaper and hopefully better), and it has new name servers. We have had to set up 'DNS Zones' for each website and specify the MX, A, CNAME records. The new DNS records are already specified in the DNS Zone. Sounds like the process of preparing for the hosting server change may be as follows: 1. Decide the time and date for changing the DNS records for each domain (best during night and on weekend to reduce likelihood that emails sent to client are left behind on old server before downloading onto client’s computer, or that client has problems sending an email. Q. I’m not sure whether the email sending server is the same as the email receiving server, so whether this latter point is in fact a concern??? 2. Advice to client as follows: i)At least 2 days before the time of changing the DNS records, advise client of that time and date. ii)Explain to client that most ISPs will change to the new server within a couple of hours, but since some ISPs cache the DNS records, it may take longer (maybe 48 hours and occasionally longer). When the DNS records are cached by an ISP then a visitor to your website who is using that particular ISP may continue to view your website on the old server, until the DNS records are updated by their ISP. iii) Provide client the new email user name and password. Explain to client that before the advised time of changing the DNS records that they should add an additional email user name and password to their email setups (in Outlook etc), if in fact the user password has changed from their original. Advise client that they may have email setups for 2 email ‘accounts’ but this ensures that they will receive the emails from both the new and old mail servers. Advise them that they should be OK to remove the old email account after one week. If they are concerned that they have missed any email messages on the old server then they can access webmail on the old server [at XXXXX url] up until [YYYYY date (the date when we are no longer paying for hosting on the old server)] Q. Does client have to change Incoming Mail Server in the Outlook etc program as well, or just keep as it was before the change? (iv) So client can publish new website information to the now new server: provide them the new FTP details: User name, Password, FTP address 3.I then change the DNS records at the time and day advised to client. I do this by logging on to the domain registrar, and making the changes. 4.I then keep my fingers crossed! NOTES: I see that TTL (Time to Live) refers to the fact that all DNS records have a TTL property, specifying the amount of time other DNS servers and applications are allowed to cache the record. It might be getting a bit beyond my expertise to make changes to TTL at this point. Thanks again CoreyBryant for the advice given to this novice, and for any feedback on the process outlined above by you or anyone else! In case it helps someone else, this link also provided interesting information General DNS Propagation Information Regards, spinningjennie
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