This is set up correctly, perform a Reverse Lookup on the IP address Lookup to the PTR record of the IP address. This looks up the IPĪddress to see if there is a matching DNS entry. To confirm whether Ensure a PTR record (Reverse DNS record) has been set. Most servers,Įspecially large ISPs will complete a Reverse Lookup on your IP for.Test if the server has been spammed through, see this link:.Test to see if the MailEnable server is not open relay:.To prevent delays and rejections from remote mail servers: Here are some troubleshooting guides from the various providers that containĭetailed bounce errors and links to articles to address each of them:īelow are some best practices that need to be implemented within MailEnable Provide detailed information relating to the delay/rejection. Will also provide a URL that can assist in troubleshooting the SMTP error and

Logged within the MailEnable SMTP log files. The error code that is returned in the bounce should also be Sent message was either delayed or could not be delivered along withĪn SMTP error code that the remote server generated during the SMTP Or rejection. The causes for these are varied but normallyĪ bounce message will be generated indicating that the

Such as Hotmail, Yahoo, Gmail, AOL, etc. is due to a temporary delay The most common reason for mail not being accepted by servers ForĮxample, Gmail may display a question mark for the senders avatar. Mark your email as junk or indicate that the sender is not authenticated. May temporarily delay or reject your inbound message. To large email providers such as Hotmail,, Yahoo and Gmail that

This article provides troubleshooting information for sending Unable to send email to some domains, such as Hotmail, Yahoo, Gmail etc.

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