Why Choose Keith Thomas
• 20 years of experience as a Senior Apple Support Specialist at Apple Computer UK HQ.
• Former Apple Computer UK Mac Support Specialist and Apple Authorised Service Provider background.
• Established and Independent since 2010 for on‑site Apple Support Service – no call centres, no outsourcing, no hardware repairs. Over 25,000+ Apple problems resolved. Unique on-site Apple Support Service. backed up with Independent Apple Telephone Support Assistance.
• Trusted by home users, small businesses, and professionals across London and the South East UK.• Clear, honest, software‑only support. No Hardware Repairs. Expert Apple Consultancy Service.
On‑site iPhone Email Support in London and the South East UK
What this page covers
This guide explains the most common reasons why an iPhone cannot send emails, the steps you can try yourself, and when it’s time to get professional on‑site help. It applies to:
• iPhone 17 / 17 Pro / 17 Pro Max / iPhone Air
• iPhone 16 / 16 Pro / 16 Pro Max
• iPhone 15 / 15 Pro
• iPhone 14 / 14 Pro
• iPhone 13 / 13 Pro
• iPhone 12 / 12 Pro
• iPhone SE (2nd and 3rd generation)
And all email providers including iCloud Mail, Gmail, Outlook, Microsoft 365, Yahoo, BT, Virgin Media, Sky and custom domain email accounts.
The most common iPhone email sending problems
These are the issues Keith Thomas sees most often during on‑site visits:
• iPhone not sending emails
• Emails stuck in Outbox
• iPhone Mail app not sending attachments
• iPhone not sending Gmail
• iPhone not sending Outlook or Microsoft 365 emails
• iPhone not sending iCloud Mail
• iPhone not sending emails after update
• iPhone not sending emails on Wi‑Fi
• iPhone says “Cannot Send Mail”
Quick checks you can do yourself
These steps solve around 50% of iPhone email sending issues.
Check 1 – Restart the iPhone
Check 2 – Check your internet connection
Check 3 – Turn Airplane Mode off and on
Check 4 – Force‑quit and reopen the Mail app
Check 5 – Turn off Low Power Mode
iPhone not sending emails
This usually means:
• Incorrect outgoing mail server (SMTP) settings
• Authentication failure
• Email account temporarily locked
Try:
• Re‑entering your email password
• Checking SMTP settings in Settings → Mail → Accounts
• Restarting the iPhone
Emails stuck in Outbox
This usually means:
• Weak or unstable internet connection
• Large attachment
• SMTP server timeout
Try:
• Switching between Wi‑Fi and mobile data
• Removing large attachments
• Restarting the iPhone
iPhone not sending Gmail
This usually means:
• Google security block
• App‑specific password required
• SMTP disabled
Try:
• Signing into Gmail on a browser to confirm access
• Turning on “Allow less secure apps” (if applicable)
• Re‑adding the Gmail account
iPhone not sending Outlook or Microsoft 365 emails
This usually means:
• Authentication token expired
• Microsoft server delay
• Incorrect SMTP settings
Try:
• Removing and re‑adding the account
• Restarting the iPhone
• Checking Microsoft 365 service status
iPhone not sending iCloud Mail
This usually means:
• iCloud Mail disabled
• iCloud storage full
• iCloud server delay
Try:
• Turning on Mail in iCloud settings
• Freeing iCloud storage
• Restarting the iPhone
iPhone not sending emails after update
This usually means:
• Mail settings reset
• Authentication issue
• Temporary iOS bug
Try:
• Re‑entering email passwords
• Restarting the iPhone
• Removing and re‑adding the account
iPhone not sending emails on Wi‑Fi
This usually means:
• Router DNS issue
• Wi‑Fi interference
• SMTP server timeout
Try:
• Switching to mobile data
• Restarting the router
• Restarting the iPhone
“Cannot Send Mail” error
This usually means:
• SMTP authentication failure
• Incorrect outgoing server settings
• Email account temporarily blocked
Try:
• Re‑entering your email password
• Checking SMTP settings
• Restarting the iPhone
When DIY stops working
You should get on‑site help if:
• The iPhone will not send emails at all
• Emails stay stuck in Outbox
• Mail works on other devices but not iPhone
• Email stopped sending after an update
These issues usually require:
• Email account repair
• iPhone Mail configuration repair
• iCloud and Apple ID checks
• Network and DNS diagnostics
On‑Site iPhone Email Support – London & South East UK
If your iPhone is not sending emails, Keith Thomas provides an often same‑day on‑site support service across:
• Central London
• West, North, South and East London
• Surrey
• Berkshire
• Hampshire
• Wiltshire
Keith Thomas is an Apple Support Specialist in:
• iPhone email and Mail app issues
• iCloud Mail, Gmail and Outlook problems
• Microsoft 365 and Exchange configuration
• Network and DNS troubleshooting
Book on‑site help in London and the South East UK
If your iPhone is not sending emails, Keith Thomas can visit your home or office and get everything working again.
Keith Thomas – Apple Support Specialist
Established 2010 – Open 09:30–20:30, 7 Days
Contact Keith Thomas by Telephone: 07800 940756 or by Text to: 07800 940756, or simply complete an online website contact form 24/7