A few common errors, what they mean, and their resolutions.
Error Message Example: 550 5.7.1 xxxx1234abcd (random characters appear instead of xxxx1234abcd) This message does not comply with required standards.
Error Message Explanation: This error indicates that the Windstream spam filters have detected something in the email as being marked as spam by other recipients. This can include the senders email address, recipients email address, the subject, the attachment, or anything in the body of the message (including signatures, phone numbers, images, logos).
Resolution: If you receive this error please forward the exact error message "550 5.7.1 xxxx1234abcd (random characters) This message does not comply with required standards" along with a copy of the message that generated this error.
If you are using Outlook the copy of the message can be saved from the Sent Items folder. If you are using webmail.windstreamhosting.com then the message will be found in the Sent mail folder. Please send the attached copy of the message with your error to hostmaster@windstream.net.
Error Message Example: 550 5.7.1
Error Message Explanation: This message indicates that the sender has sent email to 15 or more email addresses that produced a bounceback message stating the recipient does not exist. This looks like spamming to receiving mail servers and when it occurs too frequently it will cause the Windstream mail server to get blacklisted.
Resolution: When this occurs a 24 hour block is placed on the senders email account. This is to allow the sender time to audit their mailing list and remove all invalid email addresses. These invalid email addresses would have generated an error message as shown below:
----- The following addresses had permanent fatal errors -----
(reason: 550 Host unknown)
Alternate Solution: Try out Windstream Email Marketing, powered by VerticalResponse. VerticalResponse is a great solution which will give you the ability to manage your subscriber base with ease. This will help you identify and eliminate invalid email addresses as well as allow you to send large email blasts to subscribers.
Error Message Example: 553 5.5.3 Too many restricted recipients.
Error Message Explanation: This message indicates an outgoing email contained 15 or more @yahoo.com and @gmail.com recipients. In order to comply with spam complaints we are enforcing a maximum number of @yahoo.com and @gmail.com recipients on a per email basis.
Resolution: Adjust your mailing lists and limit the total number of @yahoo.com and @gmail.com recipients to no more than a combined 15 total.
Alternate Solution: Try out Windstream Email Marketing, powered by VerticalResponse. VerticalResponse is a great solution which will give you the ability to send large email blasts to subscribers without the restrictions for @yahoo.com and @gmail.com users.
Error Message Example: 550 5.7.1
Error Message Explanation: This message indicates that your email address has sent more messages than allowed within a specific timespan.
Resolution: Try sending email blasts to no more than 100 recipients at a time per hour. If you need to send large amounts of email like a newsletter you can either break up the number of recipients or try out Windstream Email Marketing, powered by VerticalResponse. VerticalResponse is a great solution to sending email to a large contact base and gives you the ability to manage your subscribers with ease.
Error Message Example:
Error Message Explanation: These messages typically indicate that your mail servers IP address has been blacklisted due to spam traffic originating from the IP address. This could indicate that your email account, domain, mail server or a device on the same network as the IP address is compromised.
Resolution: Click on the URL provided in the message and follow the instructions to get your IP address removed from the blacklist.
Error Message Example: The server response was: 4.0.0: Your IP address has been restricted due to heavy usage. Enable SMTP authentication in your email client to send mail.
Error Message Explanation: This message indicates that our server does not detect SMTP Authentication as being enabled on your connection to Windstream. When SMTP Authentication is not enabled our server will only allow a small amount of outgoing messages to go out before restrictions are enforced. This restriction is to prevent using our mail servers as an unauthenticated relay which is commonly seen as spamming.
Resolution: If you are using a 3rd party email client (Examples include: Microsoft Outlook, Mozilla Thunderbird, Apple Mail, Android mobile device, Apple mobile device, etc...) please checkout our SMTP Authentication settings guide here:
Error Message Example: Your IP address has been restricted due to heavy usage.Enable SMTP authentication in your email client to send mail.
The following recipient(s) could not be reached:
'recipient@domain.tld' on 4/4/2013 9:36 AM
450 4.0.0
Error Message Explanation: Too many emails have been sent without outbound authentication turned on properly.
Resolution: Make sure outbound authentication is turned on in email client settings. If it is already on, check that it's set to "use same settings as incoming" and not "check for new messages before sending".
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