Mails sent with BCC did not reach recipients?

Emails can be send to several recipients at once either by adding multiple recipients to the To field, or by making use of the CC or BCC fields instead. CC stands for Carbon Corby which is usually used to add recipients that every other recipient in the To or CC field knows or communicates with, while BCC is used to hide recipients so that the email address of others is not displayed in the email.
The BCC option is the preferred method of sending out emails as newsletters or announcements, as it protects all email addresses from being shown to every recipient. This is a privacy issue and companies should take great care to make sure that they use BCC for mass emails.
We have seen it in the past that companies lumped all recipients together in the to or cc field of the email which infuriated some users.
The core reason for this is that their email address has been exposed to other users which not only opened up the door for other users knowing about the address, but also for emails being sold to spammers to make a quick buck or two.
One of the problems associated with the BCC field is that emails using it may get rejected by mail servers. The main reason for this is if the sender failed to add at least one email address to the to field of the email. Mail programs, servers and filters may block email addresses without a to field so that it is best to make sure that at least one TO recipient is added to the list.
You can use an official email address for that, a no-reply email address, and even a throwaway email address even though I would not really recommend that as others may be able to read replies if you do the latter.
The best option to deal with this case is either to use an official reply address and add it to the To field, such as [email protected], or use a no-reply email address instead to let everyone know that they should not reply directly to the address.
It is a good idea to add information that the no-reply address is not monitored to the email so that users know that mails they send to the address won't be read by humans.
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You said that Outlook isn’t your main email client, so which is your main one?
I think its thunderbird
It is Mozilla Thunderbird.
Awesome! This actually solved my problem… what a stupid bug.
If this is the same bug that I’ve encountered, there may be another fix: (1) hover over open Outlook item in Taskbar, cursor up to hover over Outlook window item, and right-click; (2) this should give you Restore / Move / Size / Minimize / Maximize — choose Move or Size; (3) use your cursor keys, going arbitrarily N/S/E/W, to try to move or size the Outlook window back into view. Basically, the app behaves as though it were open in a 0x0 window, or at a location that’s offscreen, and this will frequently work to resize and/or move the window. Don’t forget to close while resized/moved, so that Outlook remembers the size/position for next time.
THANK YOU Claude!!! I could get the main window to launch but could not get any other message window to show on the desktop. You are my hero!!!!
Solved my issue! 6 years later and this is still problem…
Fantastic. Thank you. Size did the trick.
This solved my Outlook problem, too. Thank you. :)
Thank you so much, this started happening to me today and was causing big problems. You are a life saver, I hope I can help you in some way some day.
You are a god – thank you!
thanks a lot…. work like charm.. :-)
Yah…thanks Claude. I’ve been having the same problem and tried all the suggestions…your solution was the answer. It had resized itself to a 0/0 box. Cheers
Excellent post. This had me baffled even trying to accurately describe the problem. This fixed it for me.
Thank you
Thanks a lot for the article. Don’t know why it happenend, don’t know how it got fixed, but it was really annoying and now it works :-)
Thanks a lot. I was facing this issue from past 3 week. I tried everything but no resolution. The issue was happening intermittently and mainly when I was changing the display of screen ( as i use 2 monitors). The only option i had was to do system restore. But thanks to you.
I’ve been tried to sole this problem for 12hours. Your comment about changing the display of screen helped me a lot!! Thanks!!
Thank you…don’t know why this happened but your instructions helped me fix it. Running Windows 10 and office pro 2007
Great tip! Thanks!
Worked for me, too – thank you!!!
It’s Worked for me, too
thank you very much!
I had a similar issue with Outlook 2013 on Windows 10 and this helped me to fix it. Thank you very much!
Thank you so much. Solved!
Considering you published this in 2012, incredible not been debugged by Microsoft.
Thank you again. M
This problem was faced by only one user logging to TS 2008 r2 using outlook 2010.The issue was resolved.
Thanks.
Great tip. Thank you!!!! If it helps, I had to use the Control Key and the arrow keys at the same time to bring my window back into view. Worked like a charm.
Thank you, this worked !!!!
Man, you are a fucking god. Thanks a lot, what an annoying bug!!
Awesome, this post solved the issue. Many thanks!