On the MacBook Pro, OS 10.9.5, mail stopped going out from all three accounts. Incoming mail is fine. Connection Doctor says connected. Checked the settings with one of the accounts and are correct. Does anyone have a solution? It seems to be Mail related. Thanks.
Who is the provider xxx@?.com/net) for the accounts?
Can you send from those account on another device?
Yes. Email works on the websites. It seems to be Mail. He has three accounts on it. Comcast, gmail and a school account.
Do you see two green symbols for each account? There should be one for incoming and one for outgoing. iCloud and Exchange accounts only have one entry. If SMTP (outgoing) is red, you most likely need to add the password again in SMTP settings.
Do you see an Outbox? Scroll down in the folder list to view.
If yes, look for a message stuck in the Outbox. Usually it's a message with a large attachment and can't send. Move the message to drafts then try sending a new test message.
The outbox has been deleted and then filled up with new test emails. The computer is not here right now, but we did talk to comcast and confirmed the settings with them. I wonder if the outbox is corrupted or something.
Usually it's a password issue with SMTP.
EDIT SMTP SETTINGS
In Accounts window > Outgoing Mail Server SMTP: select to Edit SMTP Server list... from popup.
Select account in the list.(It's not uncommon to find extra SMTP servers listed. When you remove account, Mail does not delete the smtp info. You might need to do some clean up in the list to remove the extras.)
Under Advanced Tab:
Apple defaults to the default ports (25,465, 587) but some servers prefer a custom port. Check to see what port they recommend. Gmail for example likes 465, Outlook.com 587, Comcast 465
(note: Mail really likes to default to 587 in Yosemite now. Try entering 465 and see if that helps)
Verify if your server require SSL.
User Name. Enter full email address eg. UserName@gmail.com
Add password if it is blank.
Open Connection Doctor under Window in the Menu bar.
Do you see green light now for your account SMTP?
Comcast IMAP Settings:
Incoming server: imap.comcast.net
Outgoing server: smtp.comcast.net
Authentication ON
Incoming Port: 993 with SSL ON
Outgoing Port:
465 with SSL ON
Those are the settings we just changed with Comcast. We did the custom port. He also has 2 other emails that don't work in the mail program (gmail and UConn). They used to. I will have him check for the lights in Connection Doctor when he comes home.
When reading through old discussions there was one about tossing out some kind of outbox folder, but for the life of me I can't find it on his computer. (I found it easily on my desktop iMac). Could something like that be the answer? The posts were several years old.
You don't see the Outbox unless something is stuck in there or it's sending.
Repair Mail
With Mail quit....
Go to the User's Library folder. This folder is hidden by default. To unhide: Select the Finder in the Dock. Under Go in the Menu bar > hold down the Option key and you’ll see the Library.
• Go to Containers. Drag the com.apple.mail folder to the Desktop
• Go to Mail folder.
Select the V2 > MailData folder.
Delete any files in MailData with envelope in the name. (should be 3)
• Go to Preferences. If you find any com.apple.mail.plist files, delete these.
Log out under the Apple in the Menu bar
Log in
Open Mail. Mail will reindex your files.
It worked. Thanks so much!
Great, glad we finally hit on the right fix.
Outgoing mail sits in outbox on Macbook Pro
