IMAP account on Outlook2013 using a huge amount of bandwidth

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martyyn

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Topic # 224334 13-Nov-2017 15:00

A client of mine currently has an @clear.net.nz email account. So I bought them a domain name and created an email account on some shared hosting I have a couple of websites on. Nothing taxing at all.

I created an IMAP account in Outlook2013 on Friday afternoon and by this morning it had used over 10GB in bandwidth ! I allocated more resources to try and find out what was going on and for the first hour nothing happened. Since 10am however it's almost permanently sat at 3MB/min.

They have only sent and received a handful of emails and they are plain text. There is nothing stuck in the outbox, nothing with any attachments, Outlook does it's send and receive in a time frame I would expect and email comes and goes as you would expect.

I've searched the web all day to try and work it out but all I find are people having the same problem, mostly from a few years ago, and none with any explanation or solution. One suggestion is to delete the account and recreate it, but they say the problem returned.

Anyone seen anything like this before or have any suggestions on what to look for ?

timmmay

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Reply # 1900243 13-Nov-2017 15:06

I guess I'd try using a different email client to start with, to make sure it was a problem with Outlook. I might look at the traffic to work out what it's doing. Is there a port blocked that would prevent push doing constant polling? Are there IMAP settings you can change that tells it to check say every 10 minutes instead of constantly?

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martyyn

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Reply # 1900244 13-Nov-2017 15:10

I've changed Outlook to check every 5 minutes and the send&receive is done in less than 20 seconds. Another suggested solution was to extend the timeout settings so that is now 4 minutes. No ports are blocked that I'm aware of, but I will try Thunderbird to see what happens there. The IMAP account is also setup on her iphone so I may delete that whlist I check everything else.

Strangely the in/out emails aren't showing on the WHM reports. I can usually see all the activity on there.

allan

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Reply # 1900251 13-Nov-2017 15:35

In case there is anything relevant, check out - https://www.slipstick.com/outlook/2013/imap-accounts-outlook-2013/

martyyn

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Reply # 1900261 13-Nov-2017 15:57

Thanks @allan, I found that page 10 minutes before I posted here :)

Outlook still has her the original clear POP account and I wondered if that was an issue but I'd removed that from any send&receive once we saw Vodafone were forwarding the emails on Friday.

I've removed the account from Outlook to see if that is in fact causing the problem.