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Intermittent sent e mail

First Timer
Message 5 of 5

I have exactly the same problem and it's driving me crazy.  Doesn't seem to be anyway to contact TalkTalk for actual customer help.


Message 1 of 5

Hi Brian


The TT608 error is a block on sending that's triggered when multiple concurrent logins are detected from different locations. It's a hacker protection function that's being triggered. But there have been an unusually high number of such reports so I'm beginning to conclude that the TT608 error code may now also be used if the count of wrong password attempts or weak password usage passes a certain threshold. 


Outlook does seem to be implicated in these cases and Outlook does suffer from corruption of data including passwords and therefore could result in multiple attempts with wrong passwords. Often re-entering the Outlook account password on request and saving that password gives a fix. Removing the account from Outlook and re-adding again gives a fix because that requires a password to be entered.  Forcing a password change by changing a tiscali smtp server to a talktalk smtp server (both authenticate each other as permitted senders) again seems to give a fix because that forces the user to enter the password. But if the email admins are applying this TT608 usage to the tiscali SMTP server as a way of limiting tiscali spam from vulnerable mailboxes its a workaround that doesn't force the genuine user to upgrade the password.


So, this could be the almost normal Outlook corruption scenario and or a hacker protection issue with counting the usage of wrong or weak passwords.


What's your take on your password strength?  How secure do you think your password is?  Enter the password (or a similarity to it if worried about security) into this secure website:

If a computer would take thousands of years to crack the password you're probably ok... I prefer to see 'millions of years' for extra confidence.

GondolaVolunteer 2017-2021

 Like below to appreciate my help . . . Best answer is + Accept as Solution

Message 2 of 5

I think the error message is TT608 but of course it's working ok now when I sent a test message to my gmail account. Next time it plays up I'll copy the error messqge and post it here.


Message 3 of 5

I've updated my profile with some information.

I have a e-mail address.

Currently using Windows 10 with Outlook 2016.

The problem is very intermittent, somedays I can send e-mails ok, other days it keeps requestion the SMPT password and when I enter it just presents the same dilogue box again and again as if it has not registered the password I enter.


Community Star
Message 4 of 5

Hi Brian


To link this topic to your TalkTalk service please check your Community Profile includes in Personal Information (Click here):


Your name, current TalkTalk landline 'phone and alternate number (mobile preferred). Add full address with postcode (location). Then scroll down to Private notes to add email address(es), notes and references etc and then save changes.


So how do you use email? What software on what devices or just webmail?


What's your email domain - the bit after the @ in the email address for example, or some other?


And when your email doesn't send do you see an error message and if so what is the full error message with the TT code as that can help to identify the issue.

GondolaVolunteer 2017-2021

 Like below to appreciate my help . . . Best answer is + Accept as Solution