A professional business email address has your company name instead of the generic gmail or yahoo account, for example: john@starshop.com. Most beginners use generic free business email accounts without a domain name which isn’t very professional.
Since anyone can create these generic email accounts, it becomes harder for customers and other businesses to trust such email addresses as legitimate business email accounts. If you want your customers and other businesses to take you seriously, then you need to start using a professional business email address, immediately.
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