SMTP Tester Pro

- HTML email bodies with a built-in professional template, plus an automatic plain-text fallback for clients that can't render HTML. - File attachments - pick any file from the Files app. MIME types are detected automatically, and multi-selection is supported. - Custom email headers - Reply-To, X-Mailer, In-Reply-To, or anything else your testing requires. - Multiple recipients - To, Cc and Bcc now accept comma-separated lists. - TLS fine-tuning - allow self-signed certificates or specify a custom OpenSSL cipher suite when your server requires one. - Reliable multipart delivery - resolved a long-standing issue so HTML emails with attachments now render correctly in every mail client. - A refined log color palette for both light and dark themes - readable, semantically meaningful, easy on the eyes. - Unified native iOS design across Home, Logs, Settings and How to Use.