On 27/02/2017 11:57, T i m wrote:
> On Mon, 6 Feb 2017 00:36:20 +0000, John Rumm
> <see.my.s...@nowhere.null> wrote:
>
> <snip>
>
>>>> The difficulty with moving is if you have to keep everything working
>>>> while you port over - that can be difficult -
>>>
>>> That was also something I was thinking about. Can you plan these
>>> things to happen at 5pm on a Friday?
>>
>> You can plan yes ;-)
>
> ;-)
>
> So, do these things happen in a predictable way (if not time) would
> you say please?
There is always scope for stuff to not go according to plan. However the
best way to mitigate is to set everything up in parallel, so that you
can port stuff a bit at a time and keep old and new systems running
together.
Exactly how you do that will depend a bit on the circumstance and
exactly what you are trying to port.
> Like, once we have told 123 we want to move the domain (and web /
> email) away from them, do you agree a cutoff time / date, and then
> does it happen around that time ... but when they getroundtuit?
Do that bit last. Setup new mailboxes on the new host, port the content,
and do any domain level swapping about last.
>>>> you would have to get the
>>>> new mailboxes in place, import all the data and then effect the changeover.
>>>
>>> Hmmm, I'm wondering if they would be happy to start afresh. ;-)
>>>
>>> Is there an 'export mail' function on the Panel or is that something
>>> you typically do via the client? It's been a long time since I was
>>> doing anything like this. ;-(
>>
>> You can do it with a client like thunderbird - it will let you access
>> old and new mailboxes and copy stuff between them.
>
> Assuming we talking 'on the server(s)' John, as wouldn't that require
> the original and new servers to be up concurrently or are we using a
> remote / client machine as an stepping stone here?
If you use TB - then it can be on a third machine (not necessarily a
server) - just a normal desktop. However there are either applications
you can run on a server (if you have the level of access required) or
third party services you can buy that will do the same thing server to
server with data centre speeds of transfer rather than consumer ADSL etc.
You may find your new host has (or rebadges) a service like this.
> And does it matter that they are running Outlook if I use TB to do
> this transfer process? If so I could potentially setup a single
> machine with TB and use that to archive all 20 mailboxes and uploaded
> them to the new host when it becomes available? Am I even close? ;-(
You can migrate stuff that you can access via IMAP on TB, but it won't
do exchange mailboxes. So moving the mail would be possible but not the
calendars and contact lists etc. However you could do those with outlook
(probably - not tried to be sure).
The third party services will certainly do full exchange mailboxes if
required.
>> It does depend on how
>> good your broadband is though!
>
> I think all the places it might be done from are 'ok'. ;-)
Even "ok" can take a while shifting several GB of mailbox!
>> Alternatively there are third party sites out there that will port email
>> between different types of mailbox.
>
> I may have to look into that if it is likely to help make the process
> more efficient.
>>
>> Lastly, talk to the new email host - they may well have automated tools
>> for bulk import and migration.
>
> They didn't seem to offer anything, suggesting it might be done via /
> by the client.
You may find the offering is different depending on if you are going for
1&1s own mailboxes, or for their resold office 365 option. (the latter
would have MS support to do planned migrations)
(not sure if 1&1 also do their own hosted exchange mailboxes outside of
the office 365 service - I know RS do)
> <snip>
>
> 1&1 have suggested a .com could take up to 5 days to transfer and so
> if I understand it correctly, if we were to actually make the change
> on a Friday afternoon (given that it's generally quiet email wise over
> the weekend) that it might not be back up till sometime on Wednesday?
If everything is setup, then all you need to do at the end is transfer
the domain (although in reality there is not absolute requirement to do
that. You could keep the domain hosted on 123 and just update the MX
records to point at the new server(s)
> Do any emails that are received during that time just get bounced?
Depends on how its done. So long as there are valid MX handlers in place
all the time, they the mail should be delivered somewhere.
> If say we have a snapshot of the mailbox taken last thing Friday ...
> and it comes back up at 4am on Tuesday and some emails come in, can
> you still 'sync' the mailbox with the emails you previously archived
> without losing any?
Should be able to - but it does depend on where they were sent.
> I'm trying to get a feel of the bigger picture as I've only really
> ever dealt with a single mailbox and people who are generally running
> SMTP/POP rather than IMAP and across several devices. ;-(
I can give you one real world example. This was migrating many users
from 123-reg mailboxes. Fortunately by virtue of history all the email
addresses were setup on 123 as forwards (this is because in the early
days of their pophost system, mailboxes were created and given out with
a hosting package and pre-named for you - so we had loads of mailboxes
called internode-23, internode-24 etc. Hence we had to use the
forwarding at
us...@somecomanydomain.com -> to deliver mail to the
unimaginatively named mailboxes (the desktop client would be setup to
send as
us...@somecompanydomain.com, so the outside world would be non
the wiser that there was a "private" internal address that was not
publicly used or advertised).
Even when that system went, and you could create mailboxes with proper
names, we kept with the forward system for consistency - except
us...@somedomain.com -> would forward to
user.m...@somedomain.com
When we migrated them to rackspace, we created
newdomain.com and setup
rackpace as the mx handler for that. Then created a mailbox called
us...@newdomain.com on that, and updated the forward to that it was
delivering new mail to *both* 123 and RS mailboxes. Then we used their
third party migration tool to port the bulk IMAP stuff from old to new.
The next step was to then update the user's desktop to point at the new
server and mailbox. That should then get them all the mail but on the
new mailbox. At that point we could update the forward to drop delivery
to the 123 mailbox and delete the 123 reg mailbox.
In this case we never felt the need to move the actual domains
themselves (and actually find the 123 reg forwarding capabilities quite
handy as they make doing mailing lists and stuff easy without needing to
consume a mailbox creating them).
(It turns out there is a more sophisticated setup that's possible with
our rackspace setup - they can support what they call split domain email
routing, where you point your mx records at the RS servers, but then
also give them a link back to the old MX handlers. Thence all emails
come in initially to the new servers, but if they can't match the
mailbox (because its not been ported yet) they then forward the email
onto the old MX handlers)