Verweis auf posttls.com entfernt

README.md

@@ -1,7 +1,7 @@
 PostTLS - Postfix's Transport Encryption under Control of the User
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-PostTLS is an addition to the excellent Postfix mail server. It allows to activate mandatory TLS for all domains in practice (e.g. to set `smtp_tls_security_level = encrypt`). PostTLS does this by enabling the sender of an email to delete or to send the email unencrypted if a secure connection cannot be established (e.g. because the recipients' mail server does not support transport encryption) and thus the mail was deferred to the Postfix queue. More information can be found at [https://posttls.com](https://posttls.com).
+PostTLS is an addition to the excellent Postfix mail server. It allows to activate mandatory TLS for all domains in practice (e.g. to set `smtp_tls_security_level = encrypt`). PostTLS does this by enabling the sender of an email to delete or to send the email unencrypted if a secure connection cannot be established (e.g. because the recipients' mail server does not support transport encryption) and thus the mail was deferred to the Postfix queue.
 
 License
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