why does mail send an email twice very time I send once?

Every time I send an email, Mail sends it twice. This can be annoying to the recipients and I'd like to resolve it.

The recipient receives two emails and I sent one so there is a duplicate each time at their end. Using hotmail account on my end.


Thanks in advance

MacBook Air, OS X El Capitan (10.11.6)

Posted on Aug 23, 2016 5:46 PM

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11 replies

Feb 21, 2017 4:09 AM in response to wadefromglenwood springs

I have this problem with some of my emails, being sent from my Mac running El Capitan. It seems to be when I send emails to my colleagues in the office using Outlook, and not every email. Note some people in the thread that this is only a perceived problem as you see two email in the sent box - with me at any rate this is not the case as my colleagues complain vociferously every time it happens - not only do I have two copies in my sent box, but they receive two copies -why they cannot just delete one I do not know.


Can anyone help with a solution?

Aug 24, 2016 9:37 AM in response to wadefromglenwood springs

Hi wadefromglenwood springs,

I understand that it can be quite annoying when duplicate emails are sent to your recipient, when you only intended one to be sent off. In my previous experience with this type of issue, it is usually caused by an alias email address being used along with the original email address. In this case, if you are using the Mail app on your Mac and have both the hotmail.com address and it's alias as a separate account. When emails are sent from either the primary or alias address, both accounts will send the same email.


To resolve, you should remove one of the accounts, whether primary or alias from the Mail app using the steps in the following support article: Mail (El Capitan): Set up Mail with your email accounts You can also disable them temporarily so when sending an email from either account, the other should be disabled while sending. This should alleviate the duplicate emails being sent off.

Thank you for using Apple Support Communities to post your question. Have a nice day.

Aug 24, 2016 4:54 PM in response to JayB.

Jay,


I do not have an alias account. There is only the one @hotmail account that I am aware of. So not sure where to go with it. Peculiar, indeed. This was not an issue with Yosemite, but since El Capitan it cropped up. I deleted the mail account and went through the setup procedure again and it was resolved for a few days and returned.


Appreciate the response...

Oct 2, 2016 8:55 AM in response to wadefromglenwood springs

Microsoft made the process of converting their accounts (Hotmail and Outlook) to IMAP a pigs ear of a mess (look it up, it was in all the papers), and they are still not very good at it. But as shanky etc said the mail is usually not sent twice, it just looks that way at your end.


The most sensible advice I can give you is to dump Microsoft until they figure it out, after all it is 2016 and IMAP is not new.

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why does mail send an email twice very time I send once?

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