Response 421 for all emails to @gnu.org
Hi,
for the past days almost all of my emails to any email address ending with @gnu.org are delayed, and some of them bounce. At least one other Zoho user has the same problem (unlike me the user does not use domain hosting).
I contacted sysadmin@gnu.org and they told me that there is no problem on their end. Here's an excerpt from their reply to me:
Here is an example of an email that was "returned to sender":
Here's an example of a delayed email:
Best,
Ricardo
Get Started. Write Away!
for the past days almost all of my emails to any email address ending with @gnu.org are delayed, and some of them bounce. At least one other Zoho user has the same problem (unlike me the user does not use domain hosting).
I contacted sysadmin@gnu.org and they told me that there is no problem on their end. Here's an excerpt from their reply to me:
I'm seeing an occasional error from zoho for example:
2017-10-23 12:28:36 [25674] unexpected disconnection while reading SMTP command from sender-co9.zoho.com (sender1.zohomail.com) [135.84.80.240]:31020 I=[208.118.235.92]:25
Most mail going through for zoho.com is without any error.
Today we are seeing an error delivering mail to zoho.com:
SMTP error from remote mail server after RCPT TO:< REDACTED@zoho.com>: host smtpin.zoho.com [204.141.32.120]: 452 4.3.1 Temporary System Error
SMTP error from remote mail server after RCPT TO:< REDACTED@zoho.com>: host smtpin2.zoho.com [204.141.33.54]: 452 4.3.1 Temporary System Error
Here is an example of an email that was "returned to sender":
- Delivered-To: rekado@elephly.net
- Received: from mail.zoho.com by mx.zohomail.com
- with SMTP id 1509019108562694.3318916481596; Thu, 26 Oct 2017 04:58:28 -0700 (PDT)
- Date: Thu, 26 Oct 2017 04:58:28 -0700
- From: mailer-daemon@mail.zoho.com
- To: rekado@elephly.net
- Message-Id: <15f588c44a5.ea84feb2-1109061582.-5184981302592202354@zohomail.com>
- In-Reply-To: <20171022120436.3688-1-rekado@elephly.net>
- References: <20171022120436.3688-1-rekado@elephly.net>
- Subject: Undelivered Mail Returned to Sender
- MIME-Version: 1.0
- Content-Type: multipart/mixed;
- boundary="----=_Part_2100_1949923284.1509019108517"
- User-Agent: Zoho Mail
- X-Mailer: Zoho Mail
- X-ZohoMail: Z_26063301 SPT_1 Z_26062608 SPT_0
- ------=_Part_2100_1949923284.1509019108517
- Content-Type: text/plain; charset="UTF-8"
- Content-Transfer-Encoding: 7bit
- 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.
- guix-patches@gnu.org, ERROR_CODE :421, ERROR_CODE :Host not reachable.
- Received:from localhost (port-92-200-48-141.dynamic.qsc.de [92.200.48.141]) by mx.zohomail.com
- with SMTPS id 1508673881501804.2995352416266; Sun, 22 Oct 2017 05:04:41 -0700 (PDT)
- Message-ID:<20171022120436.3688-1-rekado@elephly.net>
- Date:Sun, 22 Oct 2017 14:04:36 +0200
- From:Ricardo Wurmus <rekado@elephly.net>
- To:guix-patches@gnu.org
- Cc:Ricardo Wurmus <rekado@elephly.net>
- Subject:[PATCH] gnu: Add r-tgconfig.
- ------=_Part_2100_1949923284.1509019108517--
Here's an example of a delayed email:
- Delivered-To: rekado@elephly.net
- Received: from mail.zoho.com by mx.zohomail.com
- with SMTP id 1509017678360762.7390955770818; Thu, 26 Oct 2017 04:34:38 -0700 (PDT)
- Date: Thu, 26 Oct 2017 04:34:38 -0700
- From: mailer-daemon@mail.zoho.com
- To: rekado@elephly.net
- Message-Id: <15f587671fd.b4f17da0473446118.-8049702226797712762@zohomail.com>
- In-Reply-To: <87inf2mbgq.fsf@elephly.net>
- References: <87inf2mbgq.fsf@elephly.net>
- Subject: Mail Delivery Status Notification (Delay)
- MIME-Version: 1.0
- Content-Type: multipart/mixed;
- boundary="----=_Part_3002_398224763.1509017678333"
- User-Agent: Zoho Mail
- X-Mailer: Zoho Mail
- X-ZohoMail: Z_26063301 SPT_1 Z_26062608 SPT_0
- ------=_Part_3002_398224763.1509017678333
- Content-Type: text/plain; charset="UTF-8"
- Content-Transfer-Encoding: 7bit
- This message was created automatically by mail delivery system.
- THIS IS A WARNING MESSAGE ONLY.
- YOU DO NOT NEED TO RESEND YOUR MESSAGE.
- The original message was received at Thu, 26 Oct 2017 04:34:38 -0700
- from rekado@elephly.net [rekado@elephly.net]
- ----- The following addresses had fatal errors -----
- [Status: Error, Address: <guix-devel@gnu.org>, ResponseCode 421, Host not reachable.]
- Message will be retried for 4 more day(s)
- ----- Transcript of session follows -----
- Received:from localhost (141.80.247.119 [141.80.247.119]) by mx.zohomail.com
- with SMTPS id 1509014904965411.5159563818362; Thu, 26 Oct 2017 03:48:24 -0700 (PDT)
- Message-ID:<87inf2mbgq.fsf@elephly.net>
- Date:Thu, 26 Oct 2017 12:48:21 +0200
- From:Ricardo Wurmus <rekado@elephly.net>
- User-Agent:mu4e 0.9.18; emacs 25.3.1
- To:REDACTED <REDACTED>
- Cc:guix-devel <guix-devel@gnu.org>
- Subject:Re: Tiny Guix (and containers)
- Content-Type:text/plain; charset=utf-8
- ------=_Part_3002_398224763.1509017678333--
Best,
Ricardo
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