Maintaining the distribution list using bounce management

As soon as an email cannot be delivered, the mail server automatically generates error messages, known as bounces. A distinction is made between soft and hard bounces. Soft bounces are temporary errors, such as a full email inbox. Permanent errors are known as hard bounces, which occur, for example, when an email address does not exist. High bounce rates damage reputation . Maintaining the distribution as they are an indicator of an unclean address distribution list and therefore an indication of spam. Bounced addresses should therefore be removed from the database at regular intervals. The rule here is: soft bounces can be observed for a certain period of time . Maintaining the distribution  hard bounces should always be removed immediately.

In addition to the options already mentioned

Companies can take further measures to make mobile phone number data updated 2025 it easier for emails to reach the recipient’s mailbox:
During authentication , the receiving mail server checks that the sender is not using a foreign identity. To do this, the sending mail server and the domain of the bounce address are analyzed and checked using different authentication systems. The most common methods are Sender Policy Framework (SPF) and Domainkeys Identified Mail (DKIM).

Briefly explained

SPF records contain detailed information about the servers used to send emails. The receiving mail server uses the SPF record to check whether the email comes from an authorized mail server. If not, the email is declared as spam. With the DKIM free webinars and conferences on internet marketing in july 2020. process, the sending system adds an encrypted signature to outgoing messages . Maintaining the distribution which the receiving mail server uses to check whether the email really comes from the specified sender.

In addition to SPF and DKIM, there are other methods for authenticating emails, such as DMARC (Domain-based Message Authentication, Reporting and Conformance). You can find out more about how DMARC works here .

Once the sender has been clearly identified

As a rule, there is no need for a server-side spam check and the email is delivered directly to the recipient. In addition, mailings often have a better display because images, links and other special elements are displayed immediately and not suppressed.

The best-known providers are the Certified Senders Alliance (CSA), Return Path and TrustedDialog.

Brand Indicators for Message Identification (BIMI) is a new . Maintaining the distribution process that increases brand visibility and makes it easier for consumers to identify fraudulent emails in their inbox. BIMI builds on the established authentication processes SPF, DKIM and DMARC. If the sender uses BIMI and the receiving email/webmail china business directory client supports the process . Maintaining the distributionthe brand logo is displayed next to the sender address in the email. The recipient can then see at a glance whether the email actually comes from the specified sender. You can find more information and examples of BIMI here .