Following is the response from the server space provider, I have got upon requesting 1GB mail box size for each e-mail id for the website hosted in shared environment.

Please note that in the normal shared hosting environment, you will be facing the following issues if you are allocated with more email space:

  1. Generally domains that have more number of Email id's and email space have lot of mails stacked in the server which creates spike in inode creation in the server . This in turn creates file system errors affecting the disk integrity.

  2. Note that since you are in a shared hosting environment , the CPU usage per domain is 12 to 15 % only. If lot of mails is stacked in the server, the mail server CPU usage for your domain will go high and it will affect the performance of the entire server

Hence in order to maintain the highest level of performance on our shared servers, we are limiting the mail box maximum size to 100MB only.


  1. How appropriate are these technical reasons?

  2. Is there any way they can provide 1GB mail box and simultaneously keep constraints or check on other factors and avoid above mentioned problems?

  • What exactly is the (practical) purpose of this question? You asked your host for something, and they said no plus told you why, which is more than many would bother with. Do you think you're going to argue them into changing their minds? Their server, their rules.
    – Su'
    Jan 22, 2013 at 22:13
  • I would find a new host, if you require larger mailbox sizes. In the past, I've put scripts on shared-hosts and found 80-100% average CPU usage, which is economically best for the host (utilize all resources, no waste). I can understand their concern for data integrity and performance, and those are valid points, but on their end, it could have been handled differently. If you are going to have a lot of email traffic, I could recommend using entirely different email/web hosting. (Stick with this web host if you are satisfied, but find another email host).
    – ionFish
    Jan 22, 2013 at 22:22
  • @Su' I think the OP is simply querying (at least initially) whether the perceived technobabble could be techno-fact.
    – MrWhite
    Jan 23, 2013 at 8:32
  • @w3d - It's a free market, you do your homework prior to signing the service contract (if that's the way you went, plenty of good services out there that are no-contract) and stipulate in it what service you require. If the service provider cannot deliver, you vote with your dollars and go to someone who can. Technobabble being offered up is a good reason to move, not argue over. There's this saying about silk purses and sows ears. Jan 23, 2013 at 17:35

1 Answer 1


Sounds like you've exceeded your shared hosting capabilities. Your hosting provider uses hosted services to keep the costs down for everyone. Therefore they have to put resource limits on each account so that the resources are shared out equitably among all the accounts on the shared server. It's their server, and their ballcourt, so it doesn't matter what we think they can do, but how they plan to run their system for best response for the rest of their users on the server.

You have two options:

  1. See if they have a higher service level that lets you do what you want.

  2. The usual way of handling this is to move your email services to another system. Getting an email service provider that will provide you with 50GB of space per user also can get you on a system that has far better delivery of email, is not so likely to get blacklisted when one bad customer on the hosted server decides to spam everyone. $2.00 a month for each email account was a really good move for us because it allowed our company to send more email, receive larger attachments, and know that PSF, DKIM, DomainKeys records were processed to allow for a massive reduction in the bounce rate we were experiencing from having the email hosted through the shared server account we were using at the time.

To put it another way, the advantages of getting services that do what you need will pay off better than attempting to argue a service provider into doing something they haven't engineered the system to do.

  • Fiasco Labs: Actually, I had just bought this shared hosting account. My exact requirement is that couple of e-mail ID users never download mails so over the each span of 3-5 years they need 1GB increment in mail box size. The hosting provider committed everything unlimited (is allowing unlimited web hosting space) but now puts a cap on mail box size i.e. 100MB with above mentioned technical reasons.
    – Optimight
    Jan 23, 2013 at 1:52
  • In other words, he's not an email service provider... Jan 23, 2013 at 6:08
  • @Optimight: Check the Terms & Conditions, "unlimited" does not mean "unrestricted". (Ultimately resources are limited.)
    – MrWhite
    Jan 23, 2013 at 8:14
  • @w3d - And due to severe abuse in the past, most web server hosting providers put heavy limitations on email. We have a heavy duty plan, they limit to 100 emails per hour and freely permit ssl/tls access to email service providers that don't limit you and provide nice things like virus scanning on inbound email. Jan 23, 2013 at 17:40

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