[ale] [OT] mail issue with sending mail from managed gmail account to bellsouth email addresses

[Alex Carver]

My guess would be that a customer of Unified Layer has been compromised,
started sending out tons of spam and got the IP (or IP range)
blacklisted (DNSBL).

On 2019-01-28 18:52, Jonathan Meek via Ale wrote:
> Hello everyone,
> 
> Has anyone seen this error message before with managed google apps email to
> bellsouth email addresses?
> 
> ======================
> This message was created automatically by mail delivery software.
> 
>     A message that you sent could not be delivered to one or more of its
>     recipients. This is a permanent error. The following address(es) failed:
> 
>       <recipient>@bellsouth.net
>         host ff-ip4-mx-vip1.prodigy.net [144.160.159.21]
>         SMTP error from remote mail server after MAIL FROM:
>      <sender>@nourgroup.com>:
>         553 5.3.0 flpd601 DNSBL:ATTRBL 521< 162.144.51.195 >_is_blocked.For
> assistance forward this email to abuse_rbl at abuse-att.net
>     Reporting-MTA: dns; server.relationshipeconomics.net
> 
>     Action: failed
>     Final-Recipient: rfc822:<recipient>@bellsouth.net
>     Status: 5.0.0
>     Remote-MTA: dns; ff-ip4-mx-vip1.prodigy.net
>     Diagnostic-Code: smtp; 553 5.3.0 flpd601 DNSBL:ATTRBL 521<
> 162.144.51.195 >_is_blocked.For assistance forward this email to
> abuse_rbl at abuse-att.net
> 
> =======================
> 
> I plan to the abuse email to see if I can get further details but just
> wondering if anyone has seen it before.
>