User Support Forum

bmickey9 wrote: ↑

Thu Sep 23, 2021 3:43 pm

We have recently had emails bouncing back to us and all are to the same host. Is there anything we can do on our end to fix this issue? There are only 5 addresses headed to this sip each time we send. An example is posted below minus the address of the recipient. The email settings are to send no more that 175 every 5 minutes.

Thanks in advance for your help


---PASTE BEGINS HERE

This is the mail system at host gproxy3.mail.unifiedlayer.com.

I'm sorry to have to inform you that your message could not
be delivered to one or more recipients. It's attached below.

For further assistance, please send mail to postmaster.

If you do so, please include this problem report. You can
delete your own text from the attached returned message.

The mail system

<XXXXX@suddenlink.net>: host mx.suddenlink.net[208.180.40.132] refused to
talk to me: 421 Connection limit reached. Please try again later
Reporting-MTA: dns; gproxy3.mail.unifiedlayer.com
X-Postfix-Queue-ID: 868688033B6C
X-Postfix-Sender: rfc822; XXXXXXX@jacksonstreetchurchofchrist.org
Arrival-Date: Thu, 23 Sep 2021 04:40:23 +0000 (UTC)

Final-Recipient: rfc822; XXXXXX@suddenlink.net
Original-Recipient: rfc822;XXXXXX@suddenlink.net
Action: failed
Status: 4.0.0
Remote-MTA: dns; mx.suddenlink.net
Diagnostic-Code: smtp; 421 Connection limit reached. Please try again later

bmickey9 wrote: ↑

Thu Oct 07, 2021 3:39 pm

I am still working on this issue, but I don't think it is related to our domain being blacklisted.

When the emails are returned to us, I simply forward them individually from the same
domain and they seem to be arriving just fine.

What am I missing in my ignorance?