In the following, we have listed replies to the most frequently asked questions.
Since email is an asynchronous medium, we and all other providers cannot guarantee prompt delivery. However, we do have a large team of specialists who work on ensuring trouble-free email correspondence.
The WEB.DE spam filter systems comprise a number of different IP-based and content-based filter modules. Nevertheless, an email can be incorrectly identified as spam. Please send us the extended header for any email of this kind.
Please observe our recommendations on sending emails.
WEB.DE does not offer this service. Please observe our recommendations on sending emails. If you observe these recommendations, whitelisting is unnecessary.
In case of unmistakable characteristics that indicate a spamming server, we delay any emails sent from a specific IP address, or reject them completely. Please observe our recommendations on sending emails in this respect. If you observe these references, we can rule out delayed acceptance of your emails.
Please check if your email server's IP address is listed on an established RBL list. You can check this here. Please contact the list operator directly in such a case.
Additionally, check your server logfiles as of the first occurrence of any error.
Check whether you comply with the standards defined by the RFCs. This includes providing a syntactically correct sending address, the use of HELOs that return the IP address in a reverse lookup, and setting up a Reverse DNS entry (FQDN) for your email server's IP address.
Your systems may have been misused to send emails by unauthorised persons. Harden your systems against unauthorised use.
If you send newsletters or mass mails, check your delivery quota and remove any email addresses that no longer exist from your database. You must have the explicit permission of all recipients who you send emails to.
Active elements in an email, such as JavaScript, are disabled for security reasons when rendering emails in mailboxes. If this email is retrieved using an email program, the transmission is effected without any modification by WEB.DE.