Sending email messages from your iPhone uses a different server connection than receiving email. Because of this, your iPhone can sometimes receive email but be unable to send it. Settings for ...

Many users have reported to be getting a long error message saying: Send test e-mail message: The connection to the server was interrupted. If the problem continues ...

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 ...