Typically, when subscribers don't see your email in their inboxes, it's because of  spam filters. If your recipients have looked in their spam or junk folders and still don't see your campaign, there are a few other things to investigate.

  • Is a particular subscriber not getting your emails? Ask them to add your "reply-to" address to their contact list or address book.
  • If your reply-to email address is in their address book, have them check their spam filter settings to be sure that your content and/or address isn't blocked.
  • Are they using a webmail provider such as AOL, Yahoo, or Hotmail? These providers deliver mail in small batches which can sometimes result in emails taking up to 24 hours to be delivered to a specific email account.
  • Has the campaign actually been sent? It's possible the campaign is still in the delivery queue for sending from our servers. To check on the status of a campaign, navigate to the Campaigns page in the account and check the status column. It will show "Sent" once the emails have been sent from our servers. If it shows "Sending" then some messages are still being processed by our servers. Refresh the page to update the status.
  • Could there be an internal firewall? Some domains don't like seeing emails going to and from the same domain, via a third party. For instance, you may be sending an internal company newsletter from you@domain.com to lotsofpeople@domain.com. In the middle of that process, your email goes through a MailChimp server. Sometimes, particularly with corporate and university filters, these emails look suspicious and are blocked. Review the whitelisting information if this may be the case.

If none of the above seem to get your emails to subscribers, they may need to add our IP addresses to their whitelist. Generally, only corporate domains can do this. Consumer ISPs won't add IP addresses to their whitelists on a case-by-case basis (we work with consumer ISPs in other ways, though, to help ensure that our servers can deliver mail to them).

Typically, subscribers should ask their server administrator or IT department to handle whitelisting MailChimp's servers.

For detailed whitelisting information and a list of the servers we use for sending, contact our Support Team.

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