Published 16 June 2026 · Microsoft 365 · by the 365 Techies team — Microsoft Partners & Dell specialists, looking after Dorset since 1995
Most Outlook issues fall into a few familiar categories, and most are quick to resolve once you know where to look.
// WINDOWS PCS ONLY
We do not support Outlook on Apple Macs, iPads or iPhones. Apple does not allow our remote-support tool to take control of an iPad or iPhone (an Apple restriction), and our remote support covers Windows PCs only. On an Apple device, Microsoft’s own Outlook help is the place to start.
Not sending or receiving
This is usually a connection, password or large-attachment issue. Check you are online, that your password has not changed, and that your mailbox is not full.
Crashing, freezing or slow
An oversized mailbox, a faulty add-in or a corrupted profile are the usual causes. Archiving old mail, disabling add-ins or rebuilding the profile normally sorts it.
Key points
- Send/receive errors are often password or connection issues
- Keep your mailbox from getting too full
- Disable faulty add-ins if Outlook crashes
- A profile rebuild fixes many stubborn problems
Prefer to let us handle it? Our monthly IT support plans include this and much more, from £18.25/month per computer — with a friendly techie on hand whenever you need one. Call 01202 775566 or view our plans.