How to use Gmail as your SMTP server
One of the little-known freebies Gmail offers is a portable SMTP server to send mail from any network for any email address.
Travellers who use their ISP’s SMTP server to send mail with their email program (like Thunderbird or Outlook Express) can find themselves in a bind if they’re on another network away from home, like at a coffee shop, airport or visiting relatives. But if you’ve got a free Gmail account (get one here) you can use Google’s SMTP server to send mail through Thunderbird from you@example.com Update: Google rewrites the from address to your Gmail address..
Here’s how to set it up:
You can make this setup your default account, and it will always be used. You regular ISP mail will come in as per normal, and all outgoing mail will be routed through the Gmail smtp server, regardless of the connection you are on.
| Incoming Mail (POP3) Server - requires SSL: | your.isps.pop3.server.com Use SSL: No Port: 110 |
| Outgoing Mail (SMTP) Server - requires TLS: | smtp.gmail.com (use authentication) Use Authentication: Yes Use STARTTLS: Yes (some clients call this SSL) Port: 465 or 587 |
| Account Name: | your Gmail username (including ‘@gmail.com’) |
| Email Address: | your original isp address (username@isp.c0m) |
| Password: | your Gmail password |


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