To view the current limits for VCG's hosted subscription plans, please visit our pricing page.
For businesses that require additional storage limits, a Max plan add-on to the Regular plan. To view details regarding the Max plan add-on, please visit our Pricing FAQ page.
The amount of storage that you need is really dependent on your needs. Considering that the average email might be 100-200 KB in size, if, for example the Regular plan has 10GB of mailbox storage, your mail box can store between 40,000 and 80,000 messages. Another factor to consider is that attachments do count towards the quota as well, so if you receive a lot of large files such as images, your mailbox usage can increase significantly.
You need to ensure that you are deleting mail messages that you don't need, and downloading any large attachments to your local computer to maintain the amount of storage you have available (removing those large attachments from the mail server if storage becomes an issue).
Here are some other relevant articles on email and mailbox storage: