Juno bouncing mail

[Zev Sero]

The mail system <chomies@juno.com> (expanded from <chomie@sero.name>):
host mx.vgs.untd.com[64.136.52.37] refused to talk to me:
550 Access denied...1311d9e9c0e98011018d0070f1f1b08dc961a9b12d40306575b150d0a451a4fd2d3131...

Reporting-MTA: dns; mailfwd1.zoneedit.com
X-Postfix-Queue-ID: 3E6DF2786AA6
Arrival-Date: Mon, 29 Feb 2016 14:54:15 -0500 (EST)

Final-Recipient: rfc822; chomies@juno.com
Original-Recipient: rfc822;chomie@sero.name
Action: failed
Status: 4.0.0
Remote-MTA: dns; mx.vgs.untd.com
Diagnostic-Code: smtp;
550 Access denied...1311d9e9c0e98011018d0070f1f1b08dc961a9b12d40306575b150d0a451a4fd2d3131...

 

[Mark Jeftovic (#fb)]

Yeah weird. Looking into it.

 

[Mark Jeftovic (#fb)]

Looks like a dictionary attack against a domain email forwarding to there. We're rerouting email and blocking that now.

 

[Zev Sero]

Happening again.

<bobysero@juno.com> (expanded from <family.c@sero.name>): host
mx.dca.untd.com[64.136.44.37] refused to talk to me: 550 Access
denied...3f00a9ed45ede5e520855db5191134390404711444908079d9017960bd9d010dd9bdf5...

<chomies@juno.com> (expanded from <family.a@sero.name>): host
mx.dca.untd.com[64.136.44.37] refused to talk to me: 550 Access
denied...3f00a9ed45ede5e520855db5191134390404711444908079d9017960bd9d010dd9bdf5...

<doonie3@juno.com> (expanded from <family.c@sero.name>): host
mx.dca.untd.com[64.136.44.37] refused to talk to me: 550 Access
denied...3f00a9ed45ede5e520855db5191134390404711444908079d9017960bd9d010dd9bdf5...



Reporting-MTA: dns; mailfwd2.zoneedit.com
X-Postfix-Queue-ID: 7FADB2022212
X-Postfix-Sender: rfc822; zev.sero@gmail.com
Arrival-Date: Tue, 14 Jun 2016 12:03:22 -0700 (PDT)

Final-Recipient: rfc822; bobysero@juno.com
Original-Recipient: rfc822;family.c@sero.name
Action: failed
Status: 4.0.0
Remote-MTA: dns; mx.dca.untd.com
Diagnostic-Code: smtp; 550 Access
denied...3f00a9ed45ede5e520855db5191134390404711444908079d9017960bd9d010dd9bdf5...

Final-Recipient: rfc822; chomies@juno.com
Original-Recipient: rfc822;family.a@sero.name
Action: failed
Status: 4.0.0
Remote-MTA: dns; mx.dca.untd.com
Diagnostic-Code: smtp; 550 Access
denied...3f00a9ed45ede5e520855db5191134390404711444908079d9017960bd9d010dd9bdf5...

Final-Recipient: rfc822; doonie3@juno.com
Original-Recipient: rfc822;family.c@sero.name
Action: failed
Status: 4.0.0
Remote-MTA: dns; mx.dca.untd.com
Diagnostic-Code: smtp; 550 Access
denied...3f00a9ed45ede5e520855db5191134390404711444908079d9017960bd9d010dd9bdf5...