i have just been hunting an error in the mailer class. the mailer was converting this format of mail "test@my-mail.com" to "test@my, mail.com"

look at: AKMailMessage line 128

function _getMessageHeaderFieldFormated($address_header_field)
{
    $charset = empty($this->charset) ? AK_ACTION_MAILER_DEFAULT_CHARSET : $this->charset;
    return join(", ",AkActionMailerQuoting::quoteAnyAddressIfNecessary(Ak::toArray($address_header_field), $charset));
}

Ak::toArray calls stringToArray which separate strings by "-"

function stringToArray($string)
{
    $args = $string;
    if(count($args) == 1 && !is_array($args)){
    (array)$args = array_unique(array_map('trim',array_diff(explode(',',strtr($args.',',';|-',',,,')),array(''))));
    }
    return $args;
}

@insanet That was a bug, which has been fixed at rev.1203

@hafeez: That is normal on raw emails, see http://www.ietf.org/rfc/rfc2045.txt