Sadly there's nothing you can do other than to contact and see
if they'll remove your IP.

I'm assuming that you have your SPF records setup correctly.

On Sun, Aug 6, 2017 at 3:51 PM, Walter Alejandro Iglesias <>

> Hello everyone,
> I was using smtpd(8) (static IP and FQDN resolving direct and reverse)
> for a year without problems.  Today sending from my server (from the
> same address I'm using now) to gmail and hotmail they answered the
> following (MAILER-DAEMON answer).
> Sending to gmail addresses:
>   * 550-5.7.1 [] The IP you're using to send
>   mail is not authorized to send email directly to our servers.  Please
>   use the SMTP relay at your service provider instead. Learn more at
>   e1si6736354wra.236 - gsmtp
> Sending to hotmail:
>   * 550 DY-001 (SNT004-MC3F42) Unfortunately, messages from
> weren't sent. Please contact your Internet service
>   provider. You can tell them that Hotmail does not relay
>   dynamically-assigned IP ranges. You can also refer your provider to
> On the hotmail link above the explanaition for code DY-001 is:
>   Mail rejected by for policy reasons. We generally do not
>   accept email from dynamic IP's as they are not typically used to
>   deliver unauthenticated SMTP email to an Internet mail server. If you
>   are not an email/network admin please contact your Email/Internet
>   Service Provider for help. maintains lists of
>   dynamic and residential IP addresses.
> It doesn't happen with yahoo.
> I visited site and found out my IP is included in a list
> called PBL that, as they  explain is not a spammers list, it just
> includes dynamic and "non mail server IP ranges".
> Does someone here know what is "non mail server IP ranges" about?  Or,
> how could my static IP could be taken as dynamic (some DNS faliure at my
> ISP end?).

Reply via email to