Tag
SMTP Ports
2 posts tagged with this.
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What Are the Ports for SMTP, POP3, and IMAP?
Our email services support auto-discovery for automatic client setup, but manual configuration requires the correct ports. This guide lists all supported SMTP, POP3, and IMAP ports including recommended encrypted settings on 465, 993, and 995. Learn protocol differences, ISP blocks on port 25, manua
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Alternative SMTP Ports if ISP Blocks Port 25
If your ISP blocks port 25, use our alternative SMTP ports such as 465 (SSL required), 587 (TLS), 26, 2525 and others to send mail reliably. This guide explains why blocks occur, lists all available ports with encryption details, provides a C# configuration example, and covers troubleshooting for .N