QB Issue Resolution:
With QuickBooks 2015, there are a few changes to the way the QuickBooks Email service (Billing Solutions) works. Complete article with regards to the changes can be read on this link: http://support.quickbooks.intuit.com/support/Articles/INF27044
Resolution for Issue 'I am not able to email my invoices. How do I email?' available: Yes (Solved).
Source: Intuit Community forum.
I am not able to email my invoices. How do I email?: this issue or error code is a known issue in Quickbooks Online (QBO) and/or Quickbooks. Support for this issue is available either by self-service or paid support options. Experts are available to resolve your Quickbooks issue to ensure minimal downtime and continue running your business. First try to resolve the issue yourself by looking for a resolution described below. If it is a complex issue or you are unable to solve the issue, you may contact us by clicking here or by using other support options.Support for Email
Quickbooks Repair Pro will resolve it efficiently and affordably. Guaranteed resolution of your issue, or you pay nothing!
Error Recovery for Email [Canada]
E-Tech is the #1 Quickbooks data migration and Conversion service provider.
Additional Support Options: