The message was undeliverable. All servers failed to receive the message
.execute()
{
  Trying server mail:mail.frischauf.dk
  <- 220 mailgw9.surf-town.net ESMTP Postfix (Debian/GNU)
  -> EHLO wsw10.surf-town.net
  <- 250-mailgw9.surf-town.net
250-SIZE 78643200
250-ETRN
250-STARTTLS
250-AUTH PLAIN CRAM-MD5 LOGIN
250-AUTH=PLAIN CRAM-MD5 LOGIN
250-ENHANCEDSTATUSCODES
250-8BITMIME
250 DSN
  -> MAIL FROM:
  <- 250 2.1.0 Ok
  -> RCPT TO:the.king@frischauf.dk
 <- 550 5.1.1 : Recipient address rejected: User unknown in relay recipient table
  -> DATA
 <- 554 5.5.1 Error: no valid recipients
Error: 554 5.5.1 Error: no valid recipients
.execute()
{
  Trying server mail:mail.frischauf.dk
  <- 220 mailgw9.surf-town.net ESMTP Postfix (Debian/GNU)
  -> EHLO wsw10.surf-town.net
  <- 250-mailgw9.surf-town.net
250-SIZE 78643200
250-ETRN
250-STARTTLS
250-AUTH PLAIN CRAM-MD5 LOGIN
250-AUTH=PLAIN CRAM-MD5 LOGIN
250-ENHANCEDSTATUSCODES
250-8BITMIME
250 DSN
  -> MAIL FROM:
  <- 250 2.1.0 Ok
  -> RCPT TO:the.king@frischauf.dk
 <- 550 5.1.1 : Recipient address rejected: User unknown in relay recipient table
  -> DATA
 <- 554 5.5.1 Error: no valid recipients
Error: 554 5.5.1 Error: no valid recipients

  1 of 1 servers failed
}
The message was undeliverable. All servers failed to receive the message
.execute()
{
  Trying server mail:mail.frischauf.dk
  <- 220 mailgw9.surf-town.net ESMTP Postfix (Debian/GNU)
  -> EHLO wsw10.surf-town.net
  <- 250-mailgw9.surf-town.net
250-SIZE 78643200
250-ETRN
250-STARTTLS
250-AUTH PLAIN CRAM-MD5 LOGIN
250-AUTH=PLAIN CRAM-MD5 LOGIN
250-ENHANCEDSTATUSCODES
250-8BITMIME
250 DSN
  -> MAIL FROM:
  <- 250 2.1.0 Ok
  -> RCPT TO:old.blue.eyes@frischauf.dk
 <- 550 5.1.1 : Recipient address rejected: User unknown in relay recipient table
  -> DATA
 <- 554 5.5.1 Error: no valid recipients
Error: 554 5.5.1 Error: no valid recipients
.execute()
{
  Trying server mail:mail.frischauf.dk
  <- 220 mailgw9.surf-town.net ESMTP Postfix (Debian/GNU)
  -> EHLO wsw10.surf-town.net
  <- 250-mailgw9.surf-town.net
250-SIZE 78643200
250-ETRN
250-STARTTLS
250-AUTH PLAIN CRAM-MD5 LOGIN
250-AUTH=PLAIN CRAM-MD5 LOGIN
250-ENHANCEDSTATUSCODES
250-8BITMIME
250 DSN
  -> MAIL FROM:
  <- 250 2.1.0 Ok
  -> RCPT TO:old.blue.eyes@frischauf.dk
 <- 550 5.1.1 : Recipient address rejected: User unknown in relay recipient table
  -> DATA
 <- 554 5.5.1 Error: no valid recipients
Error: 554 5.5.1 Error: no valid recipients

  1 of 1 servers failed
}