How Long Do Mailchimp Campaigns Take To Send

MailChimp is a widely used email marketing service enabling companies and individuals to distribute newsletters, promotional messages, and various other kinds of emails to their subscribers. A frequent inquiry regarding MailChimp pertains to the duration required for the dispatch of campaigns.

Factors That Affect Delivery Time

There are several factors that can affect the delivery time of a MailChimp campaign. These include the size of your email list, the content of your message, and any spam filters or other technical issues that may be in place.

  • Email List Size: The larger your email list, the longer it will take for your campaign to be sent out. This is because MailChimp sends messages in batches, and each batch can only contain a certain number of emails. If you have a very large list, it may take several hours or even days for all of your subscribers to receive your message.
  • Content: The content of your message can also affect delivery time. Messages that contain spammy language or other red flags may be flagged by spam filters and delayed in delivery. Additionally, messages with large attachments or images may take longer to send out due to bandwidth limitations.
  • Technical Issues: Sometimes, technical issues can cause delays in message delivery. For example, if there is a problem with MailChimp’s servers or if your email provider is experiencing an outage, it may take longer for your campaign to be sent out.

Estimated Delivery Times

Based on the factors mentioned above, it can be difficult to give a specific answer to how long it takes for MailChimp campaigns to be sent out. However, in general, most campaigns are delivered within 24 hours of being sent. If you have a very large list or if there are technical issues at play, it may take longer than that.


In conclusion, the delivery time of a MailChimp campaign can vary depending on several factors. While most campaigns are delivered within 24 hours, larger lists and technical issues can cause delays. It’s important to keep these factors in mind when planning your email marketing strategy.