email support

Ask us about your TalkTalk email account and Webmail.

Showing results for 
Show  only  | Search instead for 
Did you mean: 

Incoming email being rejected...

Team Player
Message 117 of 117

I'm using Pipex DSL email and processing Microsoft Office Pro 2016.

Using Outlook, I have one important email sender who, suddenly is unable to send emails to my email address, it has been working for a long time.

The error - 503 Bad sequence of commands.

I have made various changes to my email settings, I believe they are correct and up to date. The sender has spoken to his support and also believes his system is correct and up to date.
This error only occurs with this sender who lives in France.

Any help and advice would be very useful. Thank you.

116 REPLIES 116

Message 1 of 117

Hi GregTingey,


How are you getting on, are you still experiencing this issue?



Message 2 of 117

The last time we had this problem was because receiving ISPs, notably Yahoo, Sky, AOL etc etc, were blocking or rate-limiting emails from the Pipex domain owing to excessive spam. It was Pipex's poor reputation that led to emails being blocked. So it was down to TalkTalk to fix.

Eureka! Pipex mailboxes have migrated!

Message 3 of 117

But if that isn't (or some other TalkTalk domain) then the problem is at the other end.


Super Duper Contributor
Message 4 of 117

It's happening again ...
Or rather the "other one"
Some of my posts are failing after over a day
Delivery to the following recipients was aborted after 13.9 hour(s):
Reason: The following message to $_Name"AT" was undeliverable.  The reason for the problem: Maximum Retry Queue Age Reached
I thought we'd had the last of this


Message 5 of 117

FYI: This is now fixed. Mail is now moving in both directions again between this account and Pipex email addresses.


Not sure why invalid MX records should have prevented sending mall out from TalkTalk, but it looks like it did.


@gmlack wrote:

Ah. So this thread isn't about the (all to frequent now) issues of the mail service becoming unusable for a few hours at a time?


I (well,my wife...) has a problem trying to mail a 1and1 address (and address whose MX record points at and This is a permanent problem. They can't ever mail her and she can't ever mail therm.


Here's a recent bounced message when I was testing:



This is an automatically generated Delivery Status Notification.


Delivery to the following recipients was aborted after 0 second(s):




Reason: The following message to was undeliverable.The reason for the problem: 550-Requested action not taken: mailbox unavailable



Message 6 of 117
Sorry for the delayed reply I did get a note earlier today to say some changes had been made but only just now getting to reply. Glad to hear things have improved.
Stephen, Community Manager

Conversation Starter
Message 7 of 117

I was very pleased to find that mail to 2 of my contacts has resumed in both directions all of a sudden.

I don't know how many swallows it takes to make a summer - but someone has clearly done something at last. 


Message 8 of 117
Just the issue of the IMAP/SMP mail servers occasionally rejecting all calls (usually in the early hours?) to go.
Or are there still other issues left now?

Message 9 of 117

It's now working for my GMX mail addresses too (which could replicate the problem at will).


So only 17 days from the solution being given to TalkTalk implementing it. But t least it's progress....


Message 10 of 117

@teapotLooks like your CEO nuclear option has produced results.  The MX records for and are now A and not CNAME. 


I've just received an email from one of my senders who previously were getting 503 all the time.  Not sure whether that is due to the above or if they have made some other change as well, but looking hopeful.  Checking with the others who were having problems now... 


** update ** I can confirm messages from both the sender domains I was having trouble with are coming through.  At last!


Message 11 of 117

Just to keep all the contributors to this error in the loop, below an update from the CEO Case Manager...



Dear *****


Further to my previous email, I am corresponding with other departments internally to find a resolution to your issue.


I appreciate your patience and apologise for the inconvenience.



Message 12 of 117

@StephenF wrote:
Hey Teapot, i believe some changed have been made, are you still experiencing these issues? thanks


The MX records are still invalid, so 1and1 customers (and others) will still be unable to email


It would be useful if someone actually had facts, rather than just mistaken beliefs.


Message 13 of 117

The error is still there from my end. I've asked my friend in France to test his end.


Further to above, the error still exists from France.


Community Manager
Message 14 of 117
Hey Teapot, i believe some changed have been made, are you still experiencing these issues? thanks
Stephen, Community Manager

Message 15 of 117

I wish you success with your CEO Office complaint @teapot but if my experience, and those of others I know of, is anything to go by I wouldnt hold your breath. I raised a complaint many months ago with CEO Office which was partially resolved after about 3 months of fruitless chasing by email and phone. This past month I have been trying to contact my Case Manager again (as she said I could if further issues arose) and I have not had a single response to my many emails and phone messages. I hope you fair better than I did.

Eureka! Pipex mailboxes have migrated!

Message 16 of 117

To all the Pipex contributors to this ongoing error, I sent an email to the CEO of TalkTalk on Thursday 20/2/2020 the contents of the email are below...

Good morning Tristia Harrison

I understand from TalkTalk that in the near future the Pipex email system will be replaced by TalkTalk email which will be more secure and faster, I have had a number of emails indicating that the conversion will be seamless apart from one or two pieces of data which the conversion is unable to take into account.

Pipex email, as you know is an excellent email service and has performed faultlessly, apart from the odd failure, which has been resolved quickly and professionally by the TalkTalk support team.

As you can see by the subject matter there is a very troublesome error in the email system; this error was first reported on the 16th January 2020, I have supplied various requests for information; the incident now appears to have no further action, no replies or updates as to the progress, if any, have been made.

I would be grateful if you could ask the support team to post a current update and resolution to this error. I have supplied the web link to the community page where you will find the messages to and from support.

I now have a reply which arrived yesterday at 15:55, the contents are below...

Subject: I've taken out this information
Question Reference #: 200221-000668
Date Created: 21/02/2020 03.54 PM
Response By Email (Joshua) (21/02/2020 03.54 PM)
Dear ****

My name is Joshua and my role is to resolve customer issues on behalf of the chief executive office at TalkTalk.
I am emailing to let you know that I will be handling your recent complaint regarding the email issues you have been experiencing.
If you would rather discuss the matter via telephone, my contact number is *removed for security.
I am very sorry for your recent experience. I aim to have this resolved as quickly as possible.
Kind regards,
Joshua Crick
CEO Case Manager

I wonder how long the error will stay in the system now, watch this space


Message 17 of 117

Hi Teapot, what you've provided should be enough for now. If the team ask for more I'll let you know. 




Please log in to My Account if you need to view or pay your bill, manage boosts and track your usage. From My Account you can also check your connection and test your line for any issues in the Service Centre.

Message 18 of 117
Hi Ady,
No reply isn't a good reply.
This error has been on going long enough, the Pipex users within this call, frustrated, angry and definately feeling that we are waiting for a solution that may never happen. A working and complete update would be useful.
Should the call/incident/error be raised to a higher level? Would Trista Harrison be able to give the users a more succinct relpy? How much more information do you need to resolve the error?

Message 19 of 117

@Anonymous wrote:

I have had exactly the same problems as you have regarding rejected emails, over the years (we too started with Pipex in the 1980's). In January, both my bank and credit card provider refused to use email to contact us as the emails were continually being rejected and have now reverted back to paper contact.  TalkTalk blamed 1&1, 1&1 blamed TalkTalk.  After 2 weeks I changed broadband provider and instantly emails started to arrive.  TalkTalk are now trying to charge me for a broken contract, when it was themselves that failed to provide a cogent service.  In this day and age of online banking, etc. we cannot do without emails for weeks at a time.  Have complained and written letters in Jan and Feb, not had a single reply from TalkTalk other than adding more money to their bills.

Well, the MX record for is invalid and this is affecting mails from (and to?) 1and1 accounts (and related domains, such as

This is easy for anyone to test - just query the MX record for and you'll find it points to CNAME records, which it should not.


It's now ten days since I pointed this out here. Ten days of complete inactivity by TalkTalk support.

They should be thoroughly ashamed. This is not a service, neither is it support. It is a total lack of responsibility.


Message 20 of 117

Hi we've been having problems with incoming emails on our two pipex addresses since the middle of January.  Talktalk have been no help whatsoever and I have wasted hours online chatting and on the phone with no resolution.  They keep saying they are looking into it but never get back to me.  I can't find a spam folder on their legacy website so can't find what emails are not coming through.  They keep telling me there is a settings on the site that I can access to look at the spam folder but it must be invisible because it is not there. Like others I have found my bank and credit card providers are reverting to snail mail because they are being blocked.   I am on the verge of leaving this company because after many years of being a customer I have reached the end of my patience. Is anything actually getting sorted out because I now realise that I am not an isolated incident.