![]() ![]() This includes: ade, adp, app, asp, bas, bat, bhx, cab, ceo, chm, cmd, com, cpl, crt, csr, der, exe, fxp, hlp, hta, iframe, inf, ins, isp, its, js, jse, lnk, mad, maf, mag, mam, mar, mas, mat, mde, mim, msc, msi, msp, mst, ole, pcd, pif, reg, scr, sct, shb, shs, vb, vbe, vbmacros, vbs, vsw, wmd, ws, wsc, wsf, wsh and xxe. For security reasons our servers don't allow unencrypted transfer of executable scripts and attachments.Never link to a phishing website and do not forward links to harmful software or cite spam, not even as an example or for fun!.URLs from services that are known to be abused (see: ) are rejected by our spam filter to protect our customers. Only link to valid, trustworthy URLs within your e-mail and avoid the use of redirects and URL shortening services ( shortcomings).Use meaningful URLs and avoid unnecessary coding.Avoid using obfuscation and spam techniques as criminals do (hash buster, masking, changing, missing or incorrect sender details etc.) and do not use bulk mailer software using such techniques.The transparency declaration and opt-out declaration are usually summarized at the end of the e-mail before the imprint.The first item already means that addressing e-mails using blind carbon copies (BCC) is not permitted.Avoid bounce e-mails (non-delivery notifications), establish suitable bounce handling and delete an e-mail address immediately if you know that the relevant user does not or no longer exists. Ensure that your e-mail distribution lists are always up to date.(The free "Impressum Generator" provided by Juraforum, for example, could be useful for this.) In the case of mass commercial e-mails, publication details must be provided.This means you must inform the recipients about how to unsubscribe from the newsletter if they no longer wish to receive it. Every newsletter must contain an opt-out declaration.In practice, this almost always results in a double opt-in procedure. Keyword: "Address trading".) Important: In the case of e-mail addresses generated via opt-in, check that they actually belong to the person who provided them. ("Personally" means that a declaration of consent submitted to a third party cannot be transferred. Only write to recipients who have personally given you permission to do so.To meet the transparency requirement for commercial mailings, the newsletter must contain a declaration that indicates where the address you wrote to came from and why you believe you are entitled to send newsletters to this address.The addressee must be able to tell which of his e-mail addresses was contacted.To avoid newsletters being categorized as spam, they need to meet at least the following formal requirements: Strict legal requirements apply to mass e-mails sent for commercial purposes ( Guidelines). Make sure that your e-mail systems meet these standards. Telekom expects compliance with technical standards when transmitting e-mails, as published by the Internet Engineering Task Force (IETF) of the Internet Society (ISOC), including the RFCs for SMTP, the "Internet Message Format" and Forward-confirmed reverse DNS. You can find comprehensive information on using our e-mail services at. Telekoms AUP was published at /aup.en.html. What general information should I be aware of if I want to send mass e-mails?Īn Acceptable Use Policy (AUP) is a set of rules published by the owner of a network and operator of services that specifies the manner in which the network and services may be used. What IP ranges do the dial-ups and outbound mail servers use? I have reported an error and have not yet received confirmation. ![]() How can I reach the Postmaster for systems? Can I do anything to prevent this?Ĭan I use the systems mail filters too? My IP address is blocked due to spam that was forwarded by my server, but does not originate from me. Why was the establishment of an SMTP connection rejected by the server? Why are e-mails from our server not accepted by the servers? Why do e-mails from our customers only arrive at addresses with a delay? In the event of a fault, first check the logs of your SMTP server Secure your e-mail servers against misuse ![]() Manage the blacklists and whitelists proactively Requirements for smooth access to our e-mail exchanges How can I find out personal data for an e-mail address at ? What can I do?ĭo systems use greylisting, SPF or DKIM for e-mail filtering? Use the " ↑" above the headings on the right-hand edge to return to the relevant heading within the contentĬreate transparency when sending newslettersĪvoid your e-mails being regarded as spam, harmful code and phishingĭespite using the right address, the e-mail I have sent does not arrive. IP troubleshooting - troubleshooting at IP level Information on sending mass e-mails (e-mail marketing) ![]()
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