Smtp;553 5.7.2 [TSS09] All messages from xx.xxx.xxx.xxx will be permanently deferred; Retrying will NOT succeed. See https://help.yahoo.com/kb/postmaster/SLN3436.html

1

I am getting this error.
smtp;553 5.7.2 [TSS09] All messages from xx.xxx.xxx.xxx will be permanently deferred; Retrying will NOT succeed. See https://help.yahoo.com/kb/postmaster/SLN3436.html

My all emails are not delivering. I just setup my bulk email server with 100 ips.

Please help.

2

Mail-in-a-Box was not designed to be a bulk email server. If you’re sending bulk email, a regular transactional email provider that manages your compliance with spam/feedback protocols and laws would be much better.

3

You’ve been banned from sending emails to Verizon domains. Your only choice is to follow the instructions and comply or forget about sending to Yahoo! and other Verizon domains. Or another option is to pay to use a SMTP relay service such as AWS.

If your intention is to send bulk emails and self host it, I suggest that you look into PowerMTA as your MTA rather than using MiaB as MiaB is not designed for such use as noted by @JoshData

4

I am using interspire for front end and backend power mta

5

I am using interspire for front end and power mta for backend.

6

Then why are you posting here??? @caiman

This forum is for Mail-in-a-Box which is neither Interspire NOR uses PowerMTA.

Perhaps you should seek support from one of those companies?