Horde_Mime_Part::setCharset PHP Method

    public function setCharset($charset)
    {
        $this->setContentTypeParameter('charset', $charset);
    }

 /**
  * Sends a message to an email address supposed to be added to the
  * identity.
  *
  * A message is send to this address containing a time-sensitive link to
  * confirm that the address really belongs to that user.
  *
  * @param integer $id       The identity's ID.
  * @param string $old_addr  The old From: address.
  *
  * @throws Horde_Mime_Exception
  */
 public function verifyIdentity($id, $old_addr)
 {
     global $injector, $notification, $registry;
     $hash = strval(new Horde_Support_Randomid());
     $pref = $this->_confirmEmail();
     $pref[$hash] = $this->get($id);
     $pref[$hash][self::EXPIRE] = time() + self::EXPIRE_SECS;
     $this->_confirmEmail($pref);
     $new_addr = $this->getValue($this->_prefnames['from_addr'], $id);
     $confirm = Horde::url($registry->getServiceLink('emailconfirm')->add('h', $hash)->setRaw(true), true);
     $message = sprintf(Horde_Core_Translation::t("You have requested to add the email address \"%s\" to the list of your personal email addresses.\n\nGo to the following link to confirm that this is really your address:\n%s\n\nIf you don't know what this message means, you can delete it."), $new_addr, $confirm);
     $msg_headers = new Horde_Mime_Headers();
     $msg_headers->addHeaderOb(Horde_Mime_Headers_MessageId::create());
     $msg_headers->addHeaderOb(Horde_Mime_Headers_UserAgent::create());
     $msg_headers->addHeaderOb(Horde_Mime_Headers_Date::create());
     $msg_headers->addHeader('To', $new_addr);
     $msg_headers->addHeader('From', $old_addr);
     $msg_headers->addHeader('Subject', Horde_Core_Translation::t("Confirm new email address"));
     $body = new Horde_Mime_Part();
     $body->setType('text/plain');
     $body->setContents(Horde_String::wrap($message, 76));
     $body->setCharset('UTF-8');
     $body->send($new_addr, $msg_headers, $injector->getInstance('Horde_Mail'));
     $notification->push(sprintf(Horde_Core_Translation::t("A message has been sent to \"%s\" to verify that this is really your address. The new email address is activated as soon as you confirm this message."), $new_addr), 'horde.message');
 }