brodel Posted September 11, 2006 Share Posted September 11, 2006 We have recently (past week or two) have had users reporting their e-mails are being rejected by various companies that they send to. Here is an example: The following recipient(s) could not be reached: on 9/8/2006 12:45 PM There was a SMTP communication problem with the recipient's email server. Please contact your system administrator. <nat.vafb.com #5.5.0 smtp;554 Service unavailable; Client host [188.8.131.52] blocked using bl.spamcop.net; Blocked - see http://www.spamcop.net/bl.shtml?184.108.40.206> This has been happening on and off. I have searched around the site for the first part of today trying to find similar issues from others, but have mainly found out how to get your server off the blacklist. My server isn't currently on the blacklist, but I am afraid it might just pop up tomorrow or the next day. Is there a way we can make sure we do not appear on the blacklist, or at least find out what is causing us to be there? At first we figured it was just a mistake and the next day all was ok.. then a little while later we were back on the list. Any help on this matter would be greatly appreciated, our users are much confused about this. Thanks! -Brodel Link to comment Share on other sites More sharing options...
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