How do I remove a few of our email addresses from 3CX bounce block list?

[cpe90]

I believe the 3CX SMTP server is blocking a few of our new email addresses.

I changed the email address on one of our general voicemail-only extensions about a month ago and haven't received one voicemail since.
I know the email works because I was able to do a test email to it from gmail or yahoo and I'm able to receive them all. I can also receive voicemail emails at my direct number, so I know 3CX SMTP works.
Today, just to do more troubleshooting, I changed the email again on the general voicemail-only extension to a new email address, and I'm still not getting any voicemail email on that extension.
I did the Send Welcome Email and did not receive it. I finally deleted and recreated the extension to ensure it's not my server, and still nothing.

How do I check to see if the 3CX SMTP server is blocking the email address, and how do I remove it?
Is this normal that 3CX is blocking new email addresses for our domain?
Do all of those missing essential emails, due to the email being blocked, considered lost and not recoverable?

Moving forward, how do I ensure that the 3CX SMTP server does not block any email addresses we have?
Is there a way to do so?

Appreciate the help guys.

Thank you.

 

[cpe90]

Based on my research thru the past threads here, I ended up switching the email server to our SMTP server.
I just wish I knew in advance that 3CX SMTP server will ban bounce email addresses.

I hope in the future it's part of the 3CX notification email that an email address was blocked due to bounce emails.

@3CX Support
If I give you the email addresses that were blocked, will I still be able to recover some of them after you unblock it?
Just hoping that some of the emails are still in your server queues.

 

[biggreyphone]

+1. Not receiving VM because of SMTP shadow ban that I was not aware of for over a week. System notification would have helped tremendously.

 

[Alejandro_3CX]

Hello if you are using the 3CX SMTP server and have any issue receiving emails, please kindly ask to your 3CX partner to open a support ticket with us so we can assist on it.

Have a great day!