Spurious email sends rejected
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Spurious email sends rejected
28-01-2019 1:52 PM
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I keep getting the odd email send rejected. I get two errors: Invalid MX record, and Message too big for server.
After two or three retries the email gets through, so there's nothing wrong with the email or my setup.
I'm sending from my desktop via relay.plus.net, with username/password, and it never used to do this.
I guess it's been happening for a month or so. Other emails just go without problems.
I tried chatting to support, but they said 'raise a ticket' but there's no way I can find a way to do that.
Giving serious consideration to switching from what used to be a good service!
Re: Spurious email sends rejected
28-01-2019 3:38 PM
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Hi there,
When you say "other emails go without a problem" what's different about the email that you're having problems sending? is it a particular file that you're attaching for example?
Just asking for clarification before we get any more stuck into sorting this out.
Re: Spurious email sends rejected
28-01-2019 7:11 PM
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There's nothing special about them. One today was about 20 lines of plain text. It bounced with the 'too big' message twice, then was accepted. There is no noticable link between them - they go to different addresses, some have a small
(<1MB) attachment, but most are just plain text.
I would be happy to collect more detail next time it happens if someone is going to look into it.
Re: Spurious email sends rejected
29-01-2019 2:19 PM
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Re: Spurious email sends rejected
29-01-2019 2:27 PM
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I never use webmail. And it's sporadic - I could send 20 emails and they could all work, then the 21st might fail.
It is clearly some interaction between my email client (Thunderbird, on Linux) and your relay server, but all I get is the error popup. Do you have any logging on the server that could help?
Re: Spurious email sends rejected
29-01-2019 5:26 PM
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Thanks for your reply @oldbill, can you send me a PM with the email headers so we can look into this further and determine if it's linked with an open incident?
If it's not, the best thing to then do would be to try and narrow down where the issue may lie by trying webmail to confirm if this is related to the client.
Re: Spurious email sends rejected
29-01-2019 9:34 PM
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There are no message headers. It is rejected during the initial send operation. Here is the message that I got.
"An error occurred while sending mail. The mail server responded: <crm@billp.org> sender rejected - invalid domain (no MX or A record). Please verify that your email address is correct in your account settings and try again."
This message did have an attachment (658KB). The attempt was at about 21:17. On retrying it did go through.
Here are the headers of the message as sent.
X-Mozilla-Status: 0001
X-Mozilla-Status2: 00800000
X-Mozilla-Keys:
Reply-To: crm@billp.org
To: ....
email addresses deleted - not for public viewing.
...
Subject: Writeup for Sedbergh
Organization: Carter Ringing Machine
Message-ID: <35d278db-3a6f-d576-3cff-d062535427b0@billp.org>
Date: Tue, 29 Jan 2019 21:17:56 +0000
User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101
Thunderbird/60.2.1
MIME-Version: 1.0
Content-Type: multipart/mixed;
boundary="------------078E4C9CBFA06F5A745CEEA4"
Content-Language: en-GB
Re: Spurious email sends rejected
30-01-2019 10:25 AM
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Hi @oldbill
Thanks for providing that update. Having done a bit more digging on this one for you, I've established that we're aware of a problem that is occasionally causing the issues that you describe. Our engineers are investigating the next steps but in the meantime, as you've confirmed, a simple resend should fix the issue.
My apologies that this can be inconvenient and frustrating in the interim - we'll update you further when a fix is ready to go.
Best wishes
Dave
Re: Spurious email sends rejected
30-01-2019 11:45 AM
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Re: Spurious email sends rejected
29-04-2019 1:55 PM
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Just to note this random error as described above "invalid domain (no MX or A record)" randomly happened again over the weekend. Exact same email sent ok a minute later. It's probably happening less often now but something still not right. Domain has existed 10+ years.
Re: Spurious email sends rejected
29-04-2019 4:22 PM
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Hi there @Kwak
At present we've rolled out some work to add mitigation for this has now been completed. This doesn't mean the issue is fixed an there'll be no further rejections. It just means that the majority of messages that would have been rejected before should now be accepted.
We are still working on getting a concrete fix for this, in the meantime, as a workaround it should send if you try again.
Re: Spurious email sends rejected
30-04-2019 9:27 AM
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In another browser tab, login into the Plusnet user portal BEFORE clicking the fault & ticket links
Superusers are not staff, but they do have a direct line of communication into the business in order to raise issues, concerns and feedback from the community.
If this post helped, please click the Thumbs Up and if it fixed your issue, please click the This fixed my problem green button below.
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