Error - no such user here

[setter]

Hi
Totally new here so massive apologies if I’m posting in the wrong place.
I’ve searched both the forum and faq for a solution but sadly had no joy.

I tried to send out a newsletter a little while ago from one of the websites and everything went swimmingly. But disaster struck when I clicked send.
Half a dozen or so newsletter sent then suddenly an error displayed saying: 'no user here' or 'no known user here' and everything stopped.
Basically I cant seem to send out any newsletters anymore.

The site in question is using zencart 1.2.6 on a windows server.

Has anybody else experienced this or could some one point me in the right direction please.

I'm probably wrong but my suspicions point towards the admin password that I changed a while back.
Could someone confirm if that could be the cause? And if so, could you please point me in the right direction to what other changes need to be made.
We can access every other part of the site without a problem at all.

[Chuckl]

Guessing wildly, but it sounds like it could be a database problem - incorrect customer/subscriber record, or a problem with the login to the mail server.
I'm not sure that I see a connection between admin passwords and sending newsletters

[DrByte]

Can you give a more detailed example of the error message ?
A screenshot would be helpful too.

Does it happen only with certain email addresses ?
Some email servers will instantly reject an email if the email address belongs to a domain on the same server that's sending the email and it can do a validation before accepting the message. If it knows the domain doesn't contain such an address, it'll instantly reject it. Perhaps that's what's happening ? Can't tell without more info.

[setter]

Many thanks for the quick replies. Really appreciate it.

I'll get another newsletter prepared and send it out as normal and make a carefull note of everything that happens and come back.

Many thanks to you both once again.

[setter]

I've sent another newsletter and it sent 41 then stopped. Here's the error:

Ran into problems sending Mail. Response:550 No such user here.

I did notice that if you hover over the green ticks the email address displays so I went through the customers file and discovered that the last 6 emails sent were customer that had subscribed to newsletters their id's being 107, 109, 110, 112, 113 then it jumps up to 862.

Funny thing is customer 862, I remember something happened with this customer and I deleted his account at his request so he could sign up again.
Could be just a coincidence but I'm wondering if he was originally 114 which is actually missing.

I saved the newsletter page as a html page and ran it in dreamweaver and the code implies that the error stops when it hits a email address that belongs to customer id 115.

Do you thing I should maybe delete customer id 862?

Bit stumped myself.

[Chuckl]

Do you have the newsletter subscribers mod installed?
It could be that the customer has been deleted but there is still an entry in the subscribers table in the database.