cancel
Showing results for 
Search instead for 
Did you mean: 
cancel
Announcements

Community Helping Community

326
Views
0
Helpful
0
Replies
Highlighted
Beginner

Help understanding FMC SMTP relay error messages

Hi everyone!

 

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>

port: 465

Protocol: TLS

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 from=user1@customer.com recipients=user2@customer.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.

 

thank you!!

 

 

Everyone's tags (4)
CreatePlease to create content
Content for Community-Ad
FusionCharts will render here