Currently Being ModeratedDec 14, 2010 9:28 AM (in response to brantleyestates)Since you didn't provide detailed information, we can only guess at this point - do you have an IMAP or POP account with your ISP and/or other web based server? If it is IMAP, then your emails are being kept on a server online and only downloaded "temporarily".
For starters, go to Help Menu in Mail and type in IMAP or POP; it has excellent explanations and articles.
Also, this may be of interest:
http://support.apple.com/kb/HT250027" 3.2 GHz iMac i3, 12 GB RAM, 13" white early '09 MB,, Mac OS X (10.6.5), LaCie d2 DVDRW, 2 LaCie d2 Quadra ext HD , Wacom tablet, Epson Artisan 810
Currently Being ModeratedDec 14, 2010 1:06 PM (in response to brantleyestates)
I believe I have a POP account. I have also noticed that many of my SENT emails, which are shown on my MAIL client application are not shown on the server under the SENT tab.
I'm a bit confused now; originally I assumed that you were talking about using Mail (the Apple application), but now you mentioned "my MAIL client" - are you referring to another app and/or using an online/web based email account such as Yahoo?
There is no way I can guess right now until I understand your setup exactly, but in the meantime, for general information:
A POP account will download emails to your Apple Mail application and then delete them from the server.
An IMAP account will download emails to your Apple Mail app temporarily (until you log off/get off line), but keep them on the server.
Sent emails would only be on the server IF you use an online web based email account; otherwise, sent emails would be kept within your Apple Mail application.
Please post back with details: who is your ISP? Do you use online web based email service (which one(s)? You can tell if you have POP or IMAP by going to your Accounts in Mail Preferences and looking at what it says.27" 3.2 GHz iMac i3, 12 GB RAM, 13" white early '09 MB,, Mac OS X (10.6.5), LaCie d2 DVDRW, 2 LaCie d2 Quadra ext HD , Wacom tablet, Epson Artisan 810
Currently Being ModeratedJan 20, 2011 8:20 AM (in response to brantleyestates)mmm - I have the same problem. My emails are missing from my inbox on my computer (MacPro Quad-Core Intel, OS10.6.5, Mail 4.4) but I see all of the messages on my Road Runner POP server on the web. Been trying to re-download the messages from the server? I thought once I moved the messages from the inbox into local folders or that if the messages are missing from the inbox, Mail would automatically re-download the messages from the POP server? It's not doing that? Why or do I have a set up that the Mail only downloads the messages once?Mac Pro Intel, Mac OS X (10.6.5)
Currently Being ModeratedMar 29, 2011 8:33 AM (in response to rchin01)I too have experienced the disappearing email (Mac Pro 10.6.6, Mail 4.4, IMAP to Exchange Server). I've seen both read and unread emails disappear from the Inbox, different users/originations. Interestingly they show up in my iPhone Mail app just fine, also can see them fine using Exchange Web. Makes me wonder what is Mail 4.4 doing (nor not)?
Currently Being ModeratedMar 29, 2011 12:49 PM (in response to brantleyestates)I am in the same boat. Cannot be certain but it may have started after the last update. I am using Mail 4.5. I pick up mail from 5 different POP addresses on 2 servers and a gmail account. I cannot see a pattern in which messages disappear but I have definitely had 3 messages that were gone when I went to look for them after they had been retrieved and read. Not in trash... just gone. This is a major issue for me as I have a business need to maintain threaded conversations.
Any help appreciatedMacbook Pro 2.4Ghz Core2, Mac OS X (10.6.7)
Currently Being ModeratedFeb 22, 2012 7:28 AM (in response to Entelechy)
I just started using Mail 4.5, hoping it would provide a more streamlined environment than gmail, which is the only email address I use and I have Time Warner as my ISP. I can't locate a number of messages that should be in my sent folder, however, and now I'm without confidence that they we're actually delivered. There's no trace of them in my gmail sent folder either. This is pretty frustrating given that a number of the emails were quite lengthy and important in matter. Is there any retrieval action that I can take to be sure these messages were sent?
All assistance appreciated.
Currently Being ModeratedMar 7, 2012 12:00 PM (in response to brantleyestates)
I just had a similar issue only to find it was that my messages were sorted by "unread" instead of "date". It's a simple thing, but I almost backed up from time machine before I figured it out
Currently Being ModeratedMar 7, 2012 1:14 PM (in response to brantleyestates)
Sorry, but I'm still confused - with a POP account, emails usually are downloaded to your email client (Mac Mail) and then deleted from the server.
However, with an IMAP account, emails are downloaded only "temporarily" (unless you move them to a different mailbox - anything other than Inbox) because they are IMAP, they stay on the Server.
So, check your settings in Mail under Accounts - does it say pop.roadrunner.net (or similar) or imap.roadrunner.net?
Currently Being ModeratedMay 13, 2012 6:33 PM (in response to brantleyestates)
Similar problem. MacBook Pro, 8 gig ram, Lion, mac mail. all up to date. Run 3 imap accounts. Emails will flash on screen then disappear in all accounts. Often I only have emails that are 2-3 days old or older that show. Only a few emails on my email provider. Stopping SpamSieve makes no difference. It is very hard to send emails - the smpt out refuses to send.
The problems seem to come and go. Been here this time for a couple of weeks. Help?
Also run Thunderbird email - no problems there, get all emails timely.
Currently Being ModeratedApr 3, 2013 11:45 AM (in response to brantleyestates)
I'm seeing the same issue of e-mail disappearing since the last update. Specifically, I have a comcast business account that uses Exchange. The account set up automatically just fine. If I send mail to this account, I can see it when it initially lands in Mail but then it (and all other e-mail to that account) disappears.
My other accounts seem fine; IMAP, POP and iCloud - I'm guessing it has to do with Mail and Exchange. I used to use Apple Mail to check work my work Exchange account and found the same problem but just dismissed it as something on my company's end.
I tried the suggestions of sorting by date, grouping and ungrouping and displaying in 'classic' style windows but the problem persists. I can still go to the comcast site and see the message there so not all is lost.
Scary when mail just disappears on its own.