Emails not received despite MaxBulk Mailer delivery confirmation

Question: When sending emails, delivery is confirmed on MaxBulk Mailer. However, the mails aren't being received by the intended recipients. I tried sending emails to my own various email addresses, and have not received them either, even though MaxBulk Mailer confirmed delivery. I did check Telnet, and port 25 IS blocked. I tried changing to port 587 (Network Solutions port), but that did not work either. Please advise on how to fix this. Thanks!

Answer: Usually, when you send an email and MaxBulk Mailer confirms the message has been sent it is very likely because it has been flagged by the server spam filtering software. This is called a false positive. You will find more information on that here. In that same page there is a link labeled: How to avoid a message from being flagged as a spam.

When you press the MaxBulk Mailer 'Send' button, your messages are sent to your ISP outgoing e-mail SMTP server. You can follow the process looking at the Delivery panel. You can see how MaxBulk Mailer connects, authenticates, sends your messages and wait for delivery receipts. During that process MaxBulk Mailer marks recipients as delivered only when the server responds with a successful delivery receipt.

Once the server accepts your messages for delivery, it becomes the unique responsible for routing them all properly till their final destination. In other words, the server tells MaxBulk Mailer the messages are valid and are accepted for delivery. At this point MaxBulk Mailer is done.

The issue here is that your server is blocking your message because he believes it is some kind of spam. As stated above the best is to read this page and follow its indications.