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SMTP server is active but SolarWinds unable to communicate with SMTP

Hi All

The SMTP server is not receiving any alerts. We are using a TLS 1.2 SMTP server, which is an open relay. No authentication is needed. When I try to send a test email, it fails. However, when I send a test event from a non-TLS SMTP server, it works fine.

I can telnet to the SMTP server, but when I try to send a test email from CMD, the connection to the host is lost. I also checked the log from SMTP, which shows 'TLS negotiation failed with error algorithm mismatch' but in the Orion action execution logs. MailBee. SmtpMail.MailBeeSmtpRefusedSenderException: the server rejected the specified sender email address. The server responded: 451 5.7.3 STARTTLS is required to send mail.

How can I resolve this issue, or has anyone experienced this issue before?

Thanks

Ayush

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smtp error

Accepted answers

cnorborg

Try changing the port to 587? That's pretty common. The default for MailBee with SSL is 465… You could try some of the other ones too besides MailBee.

All comments

cnorborg

Try changing the port to 587? That's pretty common. The default for MailBee with SSL is 465… You could try some of the other ones too besides MailBee.

Ayush381

Firstly thank you for your response.

Yes, I did try port 587, but it was of no use. I will try other ones too, besides MailBee.

Ayush381

Thank you so much , it really worked it .