Default Ports: |
Server: |
Authentication: |
Port: |
SMTP Server (Outgoing Messages) | Non-Encrypted | AUTH | 25 (or 587) |
 | Secure (TLS) | StartTLS | 587 |
 | Secure (SSL) | SSL | 465 |
POP3 Server (Incoming Messages) | Non-Encrypted | AUTH | 110 |
 | Secure (SSL) | SSL | 995 |
So that takes care of the possible configuration option on our servers at Linuxweb. What if you want to check what teh configuration are for Gmail or Office365, bellow are te correct configurations for the ports and authetications.
Default Ports: |
Server: |
Authentication: |
Port: |
SMTP Server (Outgoing Messages) | smtp.gmail.com | SSL | 465 |
 | smtp.gmail.com | StartTLS | 587 |
POP3 Server (Incoming Messages) | pop.gmail.com | SSL | 995 |
 | Please make sure, that POP3 access is enabled in the account settings. Login to your account and enable POP3. You also need to enable "less secure apps" (third party apps) in the Gmail settings: https://support.google.com/accounts/answer/6010255?hl=en |
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Default Ports: |
Server: |
Authentication: |
Port: |
SMTP Server (Outgoing Messages) | smtp.live.com | StartTLS | 587 |
POP3 Server (Incoming Messages) | pop3.live.com | SSL | 995 |
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Default Ports: |
Server: |
Authentication: |
Port: |
SMTP Server (Outgoing Messages) | smtp.office365.com | StartTLS | 587 |
POP3 Server (Incoming Messages) | outlook.office365.com | SSL | 995 |
 | Note: If the above settings are not working for your account, then login to the outlook web app, go to the "Settings" > "Options" > "Account" > "My Account" > "Settings for POP and IMAP Access". |
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Default Ports: |
Server: |
Authentication: |
Port: |
SMTP Server (Outgoing Messages) | smtp.mail.yahoo.com | SSL | 465 |
POP3 Server (Incoming Messages) | pop.mail.yahoo.com | SSL | 995 |