Still no mails since Friday to my wife's (unmigrated) pipex account.
It is of little help to her unfortunately but my newly migrated pipex mail is working fine!
This getting very serious for her and I really hope that TalkTalk are actually working night and day on it.
I recall that you had 3 pipex mailboxes - all primary mailboxes. So each will get their own mailbox and sign in on the TalkTalk Mail platform.
Great to know that your pipex mailbox upgrade went well and is working on the new platform.
Did your wife receive the upgrade complete mail message from TalkTalk?
If the expected timescales were kept then the migration would have been scheduled at 14 days after the first mail message in the sequence of the three recent mail messages from TalkTalk aboiut the upgrade. So the question is when did the first relevant mail message arrive?
In theory your wife's email address should be migrated to the TalkTalk Mail platform (based on the timing of the mail messages from TalkTalk).
If you're not getting any failed delivery messages back to gMail then I suspect your wife's email is directed to the mailbox on the TalkTalk Mail platform.
So, if, as we think, the email address is a primary pipex address the issue is getting her signed in to the TalkTalk Mail platform.
The redirect out to homecall is because the sign in authentication doesn't recognise the email address. So either the sign in authentication hasn't been updated i.e. the upgrade hasn't been finalised fully or the email address isn't a primary address after all.
The gMail retry fail is indicative of what was happening over the weekend when the pipex servers were busy and or buffer queues were full of mail awaiting final delivery.
I suspect all the admins have done this morning is get the delivery of mail going again i.e. they see the buffer queues being emptied as mail is delivered so that new mail can be accepted.
The issue of getting your wife signed in to the mailbox is really just the outstanding issue. So, I think that's needing a fault ticket. Ady will ask you to confirm your wife's email address and if the emails from TalkTalk also indicated it was the primary address.
It occurs to me that the password on the failing account will almost certainly be deemed insecure in the 'new' system.
I case it would help I tried to change that password on the admin page - but after I entered a new password the admin system then decided that the username didn't in fact exist.