In the unlikely event that someone (like me!) is using this method a full four years after it was posted, I thought I’d just share my solution to the very same problem detailed above.
In a similar way, I’d found that I was able to upload certain Mercury accounts to gmail but not others. Having redone everything, as suggested above, importing via POP into Gmail still refused to work. It finally occurred to me after a day of trying to work it out that the issue was the volume of the emails in the accounts in question.

Gmail’s window for fetching mail via POP3 is limited to 15 seconds, I believe. I was uploading all of my emails from an aging, slow 2003-era HP, and the sheer quantity of email (over 7000 in the account in question) meant that the gmail mail fetcher timed-out before it could establish the quantity of the emails in the account. At least that’s how it appeared to me.

So, the solution. I set up the accounts in Mercury, and added them to gmail as POP3 accounts BEFORE adding mail to them within Outlook Express. This way, Gmail was able to establish contact with the accounts, and get set up for POP transfer without exceeding the 15 second time-out window.

It is now 1.50am and I’m finally uploading the misbehaving emails! Hope this is helpful.

regards

-can’t download mercury email server
- have installed thunderbird, but whtn i go to Tools-? Accunt Settings, the windows that opens is quite different then yours. It opens a window which says “Outgoing Server (SMTP) Settings and not the one which is shown in your tut.

Please help

No spam
No thredded view
No read-unread issue
No wrong count
I have already got rid of mercury. can’t check logs.

however here is a more interesting thing…

One of the mail accounts that I was transferring to gmail was a Yahoo small business account. (And this folder was the problematic one I wrote about above) I yesterday have learned that I really don’t need your post to transfer those mails to my gmail account. So yesterday, I have just set up pop3 for that and waited till it downloads all mails for me. I was expecting 10324 mails to be transferred. However it did not do that. I think there is a script in gmail that doesn’t let identical mails to be downloaded 2 times. So althoug it claims to have downloaded 10324 mails only 645 was downloaded. This is strange huh? (I was expecting only the missing ones to be downloaded, I mean 234 mails) I randomly checked mails if they exist in gmail and they do. And those 645 late comers? I really don’t know why they weren’t there the first time.

Things get complicated now. But I’m done with this, because I have now 411 extra mails! better more than lacking huh?

Thank you for your support. I wish I could be helpful for you to improve this post by solving the issue but I can’t, and I won’t try any further.

Take care.
eb

if you look at the headers for gmail, it only looks at one field.  Clients like Outlook/thunderbird will decode multiple places Sent from, Sender, Return Path, From, etc… Gmail web will not do that. it will just show (unknown sender), but you will be able to search.

- Spam folder – double check – I had some that went into spam locally and in gmail
- Consolidated into conversations: remember – gmail counts replies and replies to replies as one conversation thread – you said you had this turned off but double check
- Marked as read – Gmail only shows items that are unread
- The count is just wrong. Do a manual count (I had to do this also) – set it to show 100 items per page, go to the last page and count how many are on that page (if your on page 104 and see 24 email then you have all 10324)
- Check the count locally.
- Check your logs in Mercury.

That’s all I can think of…let me know what you determine the problem is.
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Thank you for this post. I have just finished uploading my 15.000 mails to my gmail account as you have described it. I have done it in 4 seperate folders. The last one has just finished uploading 10 minutes before… But I have a question. When I select all mails in that specific folder in thunderbird, I see that it contains exactly 10324 mails, however I just see 10090 mails in gmail now.

1 – I am certainly sure that the process is over.
2 – My router IP never changed. It is exactly the same number now when it was at the beginning.
3 – all of the mails are tagged so it is impossible for them to be under another tag
4 – I checked spam tag during the process, and transferred such unlucy ones back to where they belong
5 – the thredded view option of gmail is off, so I see the real number of mails.

The folder before this one was also problematic. However in that case I had a couple hundred MORE emails than expected! So it was not problematic at all.  What may be the problem do you think? Or is there a problem?

Thank you.
eb

There are a lot of things that can go wrong in the above steps, mostly firewalls and such, but it works.
Ben Shoemate
Enterprise Web User Experience
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