I have the next error in the SMTP configuring the SMTP client on FMC to send e-mails, the FMC is 6.2 and the relay works perfect from Windows (almost 50 devices syncing mails in & out), but FMC configured the same way:
mail sever: <IP_address>
I'm using authentication.
the message that appears everytime is:
Oct 07 2019 10:44:45 firepower msmtp: host=<IP_address> tls=on auth=on user=user1 firstname.lastname@example.org email@example.com errormsg='the server sent an empty reply' exitcode=EX_PROTOCOL
How can I manage to find the inner messages to understand the problem and guide the POSTFIX mail server team to solve this issue?
PS: I know the problem is not the FMC 'cuz it works with O365 and regular e-mail hosting BUT FMC can't use external mail-servers by company policies.
This month, we're excited to bring awareness to a newly formed partnership between Cisco Secure and IBM.
Securing today's dynamic enterprise applications is critical. With hybrid and multi-cloud adoption, traditional network-based security ran into limita...
Listen: https://smarturl.it/CCRS8E42Follow us: twitter.com/CiscoChampion
APIClarity is an open source, cloud-native visibility tool for APIs. It utilizes a Service Mesh framework to capture and analyze API traffic and identify potential risks.
Hello everyone, A new video in the Cisco Secure Terraform Series has just been published. If you are interested in Infrastructure as Code, and Terraform, you don't want to miss out on this amazing series with Jason "Canadian Bacon" Maynard! Newe...
The Cisco Secure Firewall and SecureX teams are looking for feedback from active Secure Firewall users who may or may not have already activated SecureX. Your responses will help us improve the Firepower experience in SecureX. Th...