{"id":2759,"date":"2015-07-02T13:13:36","date_gmt":"2015-07-02T12:13:36","guid":{"rendered":"https:\/\/www.uk-cheapest.co.uk\/support\/?p=2759"},"modified":"2015-09-03T19:01:01","modified_gmt":"2015-09-03T18:01:01","slug":"how-to-block-spam-stop-spam-fight-and-filter-spam","status":"publish","type":"post","link":"https:\/\/www.uk-cheapest.co.uk\/support\/how-to-block-spam-stop-spam-fight-and-filter-spam\/","title":{"rendered":"You’ve been redirected to our Spam Trap"},"content":{"rendered":"

\"email\"<\/a>Your email bounced with a message leading you here. Why?<\/h2>\n

We hate spam. To try to keep spam levels down, we’ve implemented a bunch of filters to block as much as we can.<\/p>\n

Unfortunately, nobody’s perfect and we occassionally block email from our friends too. This page lists all of the messages our server sends when it blocks email so you can read about what the filter is and why you were blocked.<\/p>\n

If you’re not a spammer\u00a0and your email has been blocked, we’re sorry. \u00a0Please submit a whitelist request<\/a> and we’ll fix our filters so you never get blocked again.<\/p>\n

Error messages you might have\u00a0come across<\/h3>\n

DENIED_RBL_MATCH<\/h2>\n

Refused. Your IP address is listed in the RBL<\/strong><\/p>\n

We are using the Real Time Blacklist mentioned above. You have to contact them in order to be unlisted.\u00a0To check where your IP address is listed:\u00a0MX Toolbox Blacklist Checker<\/a><\/p>\n

DENIED_RDNS_MISSING<\/h2>\n

Refused. You have no reverse DNS entry.<\/strong><\/p>\n

Every server on the internet should have a reverse DNS entry, especially<\/strong> mail servers.<\/p>\n

Our mail server checks for reverse DNS entries. Any email coming from a server without one is blocked. This stops a lot of email from servers that shouldn’t be sending email, such as virus-infected home computers, bot nets, anonymous servers all running from temporary IP addresses.<\/p>\n

DENIED_IP_IN_CC_RDNS<\/h2>\n

Refused. Your reverse DNS entry contains your IP address and a country code.<\/strong><\/p>\n

Your server’s reverse DNS entry contains its IP address and ends in a two-character country code. For example, if your IP address is 11.22.33.44 and your reverse DNS entry is 11.22.33.44.example.com.us, our server is going to block your email. IP addresses in reverse DNS entries usually indicate servers that shouldn’t be sending email – just the kind of server a spammer would use.<\/p>\n

Just change your reverse DNS entry to something meaningful to resolve the issue.<\/p>\n

To look up your mail server’s reverse DNS, use this rDNS tool: Reverse DNS Lookup<\/a><\/p>\n

DENIED_SENDER_NO_MX<\/h2>\n

Refused. The domain of your sender address has no mail exchanger (MX).<\/strong><\/p>\n

Your domain’s MX record either doesn’t exist or lists a name that doesn’t resolve AND your domain name doesn’t have an A record. This means no mail to your domain can possibly be delivered, including bounce messages.<\/p>\n

DENIED_AUTH_REQUIRED<\/h2>\n

Refused. Authentication is required to send mail.<\/strong><\/p>\n

We do not accept any email unless the sender authenticates first. Reconfigure your mail client and try again. Ensure you are using SMTP port 587 to authenticate. Port 25 rarely works these days.<\/p>\n

DENIED_IDENTICAL_SENDER_RECIPIENT<\/h2>\n

Refused. Identical sender and recipient addresses are not allowed.<\/strong><\/p>\n

You are attempting to send email both “to” and “from” the same address, which we don’t accept. In most cases, authenticating your connection will avoid this block.<\/p>\n

ENVELOPE_SENDER_IN_BADMAILFROM_LIST<\/h2>\n

Refused.\u00a0Your address is in our BadMailFrom list<\/strong><\/p>\n

Your email address (or domain) has violated a number of anti-spam filters\u00a0and has triggered a time limited block. The block is automatically removed within 12-24 hours.<\/p>\n","protected":false},"excerpt":{"rendered":"

Your email bounced with a message leading you here. Why? We hate spam. To try to keep spam levels down, we’ve implemented a bunch of filters to block as much as we can. Unfortunately, nobody’s perfect and we occassionally block email from our friends too. This page lists all of the messages our server sends … Read more…<\/a><\/p>\n","protected":false},"author":4,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"generate_page_header":"","footnotes":""},"categories":[16],"tags":[],"class_list":["post-2759","post","type-post","status-publish","format-standard","hentry","category-email"],"yoast_head":"\nYou've been redirected to our Spam Trap - UK-Cheapest.co.uk<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.uk-cheapest.co.uk\/support\/how-to-block-spam-stop-spam-fight-and-filter-spam\/\" \/>\n<meta property=\"og:locale\" content=\"en_GB\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"You've been redirected to our Spam Trap\" \/>\n<meta property=\"og:description\" content=\"Your email bounced with a message leading you here. 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