Mail not delivered to Gmail or Outlook - what to check

When this matters

The sender often sees only the symptom: the message did not arrive. Logs can show whether the recipient server accepted, rejected or delayed it.

Diagnosing delivery problems to Gmail and Outlook: SPF, DKIM, DMARC, IP reputation, SMTP logs and delivery confirmations.

Practical checklist

• check SPF, DKIM and DMARC for the domain
• identify message time, sender and recipient
• check spam folder and recipient-side rules
• ask support to verify SMTP logs

How Hostilla.pl helps

Hostilla.pl can show delivery acceptance by the recipient server, which helps when the recipient claims the mail was not sent.

What to prepare before contacting support

If you need support, include the domain, account name, time of the problem, exact error message, recent changes and one example URL or mailbox. This lets support check DNS, SSL, mail logs, PHP, database, backups and application configuration faster.