When it comes to intra-company communications, marketing purposes, and customer communication, emailing is considered to be the key factor. It is widely used and a significant function in QuickBooks desktop, as it is the most convenient feature. Moreover, the plus point of sending QuickBooks emails from outlook is that, the sent copy of the invoice or estimate is saved for the future references. But at a certain point of time, while sending or sharing the transaction reports one might encounter the problem that QuickBooks is unable to send your email to outlook . There can be numerous reasons behind this error which we will be exploring in today’s article, along with the ways to fix it. What Causes to error ‘QuickBooks unable to send email to outlook’? If the system shows incorrect email settings, then the user might encounter this type of error. Another trigger can be damaged MAP132.dll file. Also, if the user is running QuickBooks as an admin, then he/she might end up in this error. Any kind of damaged QuickBooks component . And, damaged outlook can also end up in such error.