Apple's Mail.app can suddenly and inexplicably fail to send e-mail through SMTP (outgoing) servers. A few relatively simple fixes for this issue are as follows: Delete outbox folder In some cases, the ...

If you’re stuck at The message cannot be sent right now Outlook error, make sure you’re properly connected to the internet. If not, reset your router and try sending the email after a while. Also, ...

One of the forum users reported that the Group inbox (WFP, SEO, SPP) doesn’t work in the app. Neither it’s getting updated, nor he can’t receive emails. However, it works well when using a browser.

When some users attempt to send attachments to mail recipients, the attachments will either not be received, or not properly attach to the message in the first place. Apple Discussions poster sladana ...