![]() ![]() Must use STARTTLS and modify the stream, added by Sparkpost. Server says it could send email WOOT WOOT! With Email Marketer you can: - Create professional looking email campaigns in minutes - Follow up with time. Finish the email by sending a single period Interspire Email Marketer is a powerful, browser-based PHP email marketing solution that over 20,000 web designers, webmasters and agencies are already using to create, send and track profitable email campaigns and autoresponders. Subject:testing from interspire via openssl Define I am done with email headers and ready to compose the emailģ54 3.0. Perl -MMIME::Base64 -e 'print encode_base64("") // Sparkpost SMTP server tells me I have authed and am ready to send an email It expects me to issue a challenge in a similar Base64 encoded format, so beforehand I encoded the password (a valid Sparkpost API key with "Send via SMTP" permission enabled) for Sparkpost SMTP connections: The SMTP server will issue a Base64 encoded password prompt Perl -MMIME::Base64 -e 'print encode_base64("SMTP_Injection") It expects me to issue a challenge in a similar Base64 encoded format, so beforehand I encoded the username for Sparkpost SMTP connections: The SMTP server will issue (since we 've already established a TLS secure tunnel) a Base64 encoded username prompt 334 VXNlcm5hbWU6 Once I saw the connection was established issue the EHLO command to the server to see what other commands are availableĮHLO smtp.sparkpostmail. com : 587 // A whole bunch of SSL chain stuffs would be seen here. >_ openssl s_client -starttls smtp -crlf -connect smtp.sparkpostmail.
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