Knowledgebase

If you find yourself unable to send outgoing email, but incoming email works fine and especially if you are a recipient of a 451 Error, you may need to make a change in your email program setup to resolve the error. In the interim, most people are able to send outgoing email from webmail. So no hot emails go unanswered!

Please go into your email settings, and make sure SMTP Authentication is checked first. If it is already checked and/or you still are receiving the error, you may also need to change your mail server settings for SMTP ONLY to match that for your Internet Service Provider (ISP) email. POP settings remain the same: mail.yourdomain.com.

If you have questions about your ISP email settings or whether or not they have a requirement for you to send your hosted domain's outbound email through their mailservers, please contact their technical support department for clarification. Be sure to specify you are asking about outbound email for your hosted domain, and not your ISP email address. Different internet providers will have different policies. Some may require you to verify the email address before allowing you to send your hosted domain's outbound email through their server. ATT/Yahoo will do this, for example, by sending you a verification email with instructions after you adjust the SMTP settings and try to send mail the first time.

While we can sometimes "whitelist" you on the server to eliminate this error, it's connected directly to the IP Address you connect to the internet with from your ISP. Since most people's internet connection addresses do change, either with each connection for dialup or once every few months for broadband. So sooner or later, the error will return.

Spamblocking tools in use today recognize the outbound email is bypassing your ISP mailserver. Since Spam is most often relayed in this way, the email is flagged as suspicious before it even hits our mailserver, by one of the lists that we use. In turn, our mailserver helps us remain good internet citizens by either throttling your outbound email so only a few get out, or blocking it altogether so we don't unwittingly become a cog is some spammer's grand plan.

Inconvenient, yes. But at least we are jumping through the hoops for a good cause: making life tougher for the spammers!

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