Cancellation of shipments: reasons and solutions

Reasons for cancelling a campaign

If your shipment has been cancelled, it is due to one (or both) of the following reasons:

High number of hard bounces

When we detect that a campaign has a high number of emails that do not exist (hard bounces), typically because the email has a typo or no longer exists (something common in old or purchased lists), we cancel it as soon as possible to avoid major problems. We explain what these major problems are:

• Email providers (Gmail, Hotmail, Yahoo, etc.) have a way of categorizing incoming emails through filters. These filters, which determine whether an email campaign ends up in spam or not, take into account these factors:
  • The behavior of your subscribers (if they open your campaigns)
  • The reputation of the email domain you use as a sender
  • The content and links of your campaign

We are going to focus on the second point, the reputation of the email domain you use as the sender, that is, if you send your emails with the address communications@yourcompany.com.

Sending a high percentage of emails to addresses that don't exist (hard bounce) triggers the anti-spam filters of email providers, which automatically reduce the reputation of your sending domain. This means that the more addresses you send to that don't exist, the more likely you are to systematically end up in spam. This is why we automatically pause campaigns if they have a very high percentage of hard bounces, to give you the opportunity to clean up the list of emails that don't exist.

You can find more detailed information on how to avoid ending up in spam in this article , in which we give you a more detailed explanation of how anti-spam filters work.

High number of complaints

When a high number of subscribers manually flag your email as spam, it means you're not sending the content your subscribers signed up for on your list. It could be that you're using a pre-existing list to send other content, or in the worst case, you're sending to a rented or purchased list.

The only solution in this case is to verify that you are sending the right content, and to subscribers who are really interested and who have given you their explicit consent to do so. For this reason, having a quality mailing list is essential .

Solutions to canceling a campaign

The solution is to clean your list to remove those email addresses that do not exist. To do this you have two options:

Clean lists with Acumbamail (NEW)

Now when a campaign is cancelled for having too many hard bounces, we are offered the option to clean up on the campaign report page.

This service is the only one that performs a real cleanup by making calls to the server for each email to see if it exists or not. For this reason, it has a cost of extra and is not included in any of the rates or plans. Making calls to check if an email exists or not is an expensive service for us as well. Even so, the price we offer, as it is a product only for our own clients, is well below the price offered by external companies. This process, when performed email by email, can take up to 1 hour for every 1000 subscribers.

After this cleanup, you can ask our technical support to evaluate the possibility of reactivating the cancelled campaign.

Clean lists with Acumbamail PRO

With our PRO and Enterprise plans you can use the list cleaning tool that will remove those email accounts that are not currently active. This cleaning uses our database of hard bounces, mailtraps or low-quality emails. By not making actual calls to each email, this cleaning is ideal for increasing the quality of our list, but it is not recommended for cleaning low-quality lists.

Clean lists with an external service

You can also use an external service dedicated to list cleaning. We recommend not trusting tools that offer this service at a reduced price, this service is expensive so offering it at a reduced price is not viable for any company. A low-cost cleaning will never work because it will not be real.

Resume shipping

Once you have carried out this list cleaning and review, you will need to duplicate the campaign, choose the new clean list and send the campaign again. We recommend sending it again even to those who have received the first campaign, since having had a high number of hard and unsubscribes, it is very possible that the first campaign ended up in their spam folder.