If you at a given time need to make a one-off campaign or mailing that results in more e-mail messages than your current plan permits, you may temporarily upgrade your plan to allow for a higher e-mail message volume.
The cost for this is the monthly price of the bigger plan. This does not upgrade your plan for the remainder of your subscription period, and does not include other functionality available in the bigger plan.
If you are already using mailRelate Pro or mailRelate Premium, you may temporarily or permanently increase your e-mail message volume, see “Extra volume” under Pricing.