Over the last week we have been getting quite a few calls from clients who are not receiving email from clients / friends with @xtra email addresses.
We managed to get the bounced content from one of the emails and it basically says the following: "We tried to send an email to <insert our clients email address here> but your email was graylisted. Mail failure. " A copy of the email with relevant bits redacted is at the end of this post.
This brings up two points and three questions:
Points:
1) Normal mail servers, when email is gray / grey listed wait nnn minutes then try again and are allowed through. some people have advised those having their mail graylisted to send it again but that wont work as the send again is a completely different email according to the headers (message IDs, dates, times, subjects etc) so gets grey-listed as a new email.
2) The greylisting from our servers is due to incorrect SPF records. no other domain is suffering from these effects.
Questions:
1) Is anyone else seeing this?
2) Is there someone from Spark / Xtra who can tell us why emails are sent back to clients instead of resent as per normal protocols / practice.
3) The SPF records seem to come back as incorrect. Have there been changes.
Ideally it would be great if someone from Spark can check their SPf records and also change the way their mail servers handle greylistings and rather than bug the client when it is greylisted, retry sending as per common practice nad only bug the client if there is a total failure to send the email. Even a notice about a delay, not a complete failure would be preferred.
At present our only resort is to white-list the @xtra.co.nz but considering the spoofing, spam and viruses we have received from that direction over the last few months / years, it is an option that we don't want to leave in place.
Regards
Shane
--------------8<----------- START SNIP ------------------------------------------------
On 23/02/15 6:45 pm, "MAILER-DAEMON@yahoo.com" <MAILER-DAEMON@yahoo.com>
wrote:
>Sorry, we were unable to deliver your message to the following address.
>
><receiver@client.domain.co.nz>:
>Remote host said:
>451 4.7.1 <receiver@client.domain.co.nz>: Recipient address rejected:
>Greylisting in effect, please come back later [RCPT_TO]
>
>--- Below this line is a copy of the message.
>
>Received: from [66.196.81.156] by nm8.access.bullet.mail.bf1.yahoo.com
>with NNFMP; 23 Feb 2015 05:42:49 -0000
>Received: from [98.139.244.49] by tm2.access.bullet.mail.bf1.yahoo.com
>with NNFMP; 23 Feb 2015 05:42:49 -0000
>Received: from [127.0.0.1] by smtp111.sbc.mail.bf1.yahoo.com with
>NNFMP;
>23 Feb 2015 05:42:49 -0000
>X-Yahoo-Newman-Id: 378838.32315.bm@smtp111.sbc.mail.bf1.yahoo.com
>X-Yahoo-Newman-Property: ymail-3
>X-YMail-OSG: rnex<redacted>U2A--
>User-Agent: Microsoft-MacOutlook/14.4.8.150116
>Date: Mon, 23 Feb 2015 18:42:43 +1300
>Subject:
>From: Sender Name <sender@xtra.co.nz>
>To: Receiver Name<receiver@client.domain.co.nz>
>Message-ID: <D1112523.5939%h sender@xtra.co.nz>
>Thread-Topic:
>Mime-version: 1.0
>Content-type: multipart/alternative;
> boundary="B_3507561768_83233"
>
>
>
------------------------ END SNIP -------------------->8----------------------------
Trusted
