Follow the steps detailed below to use Mozilla Thunderbird to send/receive emails.
1. Start Mozilla Thunderbird. On the File menu, click New -> Account.
2. In the Account Wizard dialog box, select Email account and then click Next.
3. In the Your Name box, type the name that you want others to see when you send a message, and your complete email address of the type user@yourdomainname.com in the Email Address field and then click Next.
4. In this dialog box, select the type of incoming server (POP or IMAP) as per your choice. Incase you choose POP, you need to enable the Use Global Inbox checkbox as shown below.
If you choose IMAP, the Use Global Inbox checkbox will automatically disappear.
5. Enter the Incoming Server as pop.yourdomainname.com if you selected POP in the above step and imap.yourdomainname.com if you selected IMAP.
The Outgoing Server address in any case will be entered as smtp.yourdomainname.com. Once this is done, click Next.
6. In the Incoming User Name field, enter your complete email address of the type user@yourdomainname.com.
7. In the Account Name field, you can enter any name via which you would like to refer this mailbox (Sales, Support, etc.) Once this is entered, click Next.
8. The Congratulations! dialog box should appear next. You can select the Download messages now checkbox and click Finish.
Your messages will start downloading and will be visible in Local Folders under Inbox by default.
Usually, the port used for the Outgoing Mail Server/SMTP Service is 25. However, there might be a situation where your ISP might be blocking the use of port 25 for SMTP service. Many ISPs block port 25 in order to minimize the amount of spam sent using their network. If you are facing issues sending mails using the default port 25, you can confirm with your ISP whether port 25 is indeed blocked by them.
To circumvent this, Dinsol.Co.In allows you to use an alternate port 2525 for sending mails if port 25 is blocked -
a. In Mozilla Thunderbird, on the Tools menu, click Account Settings.
b. Click on Outgoing Server (SMTP). In the Outgoing Server (SMTP) Settings section as seen in the below image, select entry for your domain name and click Edit.
c. Replace the default port number 25 with the alternate port number 2525.
d. Click OK in the SMTP Server and Account Settings windows to save the changes.