Can anyone help me with a problem I'm having sending email from the Webmail account I've put on my iPhone? It was working fine for several months and now has stopped working. I can receive email that is sent to my Roundcube webmail account, but I can't send from my iPhone. There are no problems when I use my computer.
The error message I receive is: "Cannot Send Mail. The server rejected one of the recipient's addresses. The message has been placed in your Outbox."
I get this error message when I try to send to any email address. Again, I can email these people from my Roundcube webmail account on a computer.
Also, my .mac email account works with no problems on my iPhone.
Thanks!
The problem is not related to RoundCube, you should ask your mail provider for help.
I face the same problem as you, get the to solve the problem?:confused: