If you use 3 Network’s broadband be careful with your Outlook email settings (and other email applications I assume).
I was recently configuring Outlook to send and receive email on a laptop using 3 mobile broadband. The emails were downloading into the Inbox with no issue, however I could not send any emails using my usual SMTP server settings. After a bit of research I discovered that if you use the 3 network you must use their SMTP settings i.e. mail-relay.3ireland.ie
- Outgoing mail server (SMTP): mail-relay.3ireland.ie
- Ensure the box beside “My outgoing server (SMTP) requires authentication” is NOT checked.