Outbound email

The simple definition of an outbound email is any email a business or one of its employees sends, as opposed to an inbound email a business receives from an external sender. In B2B communications, many teams narrow it down further: Outbound emails are initiated by the business when it reaches out first, while inbound emails are replies to conversations started by a customer or prospect.

Outbound emails can be cold emails, where there’s no established relationship with the recipient, but any email sent proactively by a business counts. They’re not limited to one-on-one messages, either — a mass email for broader outreach is also an outbound email, as long as the business sends the first message.

Inbound vs. outbound email

In B2B communications, teams often view the distinction between inbound emails and outbound emails through two lenses: who started the conversation and what prompted it. Outbound email means a business sends the first email, prompted by an internal trigger. Think order confirmations and email marketing campaigns.

Businesses may send these emails manually or use outbound email automation tools that detect when a specific trigger occurs. Some customer messaging platforms come with this functionality built in.

Inbound email means a customer or prospect sends the first message, prompted by an issue or a request for information. Everyday examples include following up on a support ticket or asking a question about a product.

This table summarizes the key characteristics of inbound vs. outbound emails as a quick reference.

How to run outbound email successfully: B2B best practices

Following established best practices helps B2B teams keep outbound email messages relevant and easy to act on.

• Start with a clear purpose: Make the purpose of every email immediately clear, whether you’re sending a simple order confirmation or introducing a new contact. Vague or meandering check-ins are less engaging and make it harder to connect with the customer or prospect.
• Give plenty of context: Generic messages are more likely to frustrate a customer because they have to spend time figuring out what you’re asking or telling them. For every outbound email, pull in all relevant details, such as the specific product involved or past interactions. To avoid leaving anything out, consider using prebuilt templates in your customer communication platform.
• Consider timing: Outbound emails designed to prompt action are most effective when they reach a customer at the right moment. For a renewal reminder email, for example, sending too early can make the message feel pushy or premature, and the customer may forget about it before the deadline approaches. On the other hand, sending a renewal reminder too late can make the customer feel pressured to act fast.
• Make next steps obvious: Recipients should immediately understand what they need to do next — such as clicking through for more details about a newly launched feature. Each message should have a clear and prominent call to action succinctly describing the single step you want the recipient to take.