Basically, email addresses like '[email protected]' and '[email protected]' tend to be marked as spam by your inbox's spam detection intelligence. For email domains like gmail, spam detection will most probably be carried out by self-learning algorithms, based on predictive analysis and historical data. Most spammed mails are generally from sales and support departments of companies, and much like that, the machine also has a conception that the spams are majorly sent by these departments.
Having said this, it is also essential to keep the emails clear and unambiguous, and if it is a sales generated mail, then the sender should know that by just looking at the sender's address. So what do you do?
Maybe you could append certain terms to the sender's address, which not only bypasses spam filters, but also increases the clarity of the source.
Try email ID's like:
But then again, this is just one suggestion, out of many that can be applied for this situation.