Questions tagged [smtps]
20 questions
0
votes
1 answer
Postfix encryption not available
EDIT #2
What's this error?
Aug 17 02:27:19 mail postfix/smtpd[1197]: lost connection after CONNECT from unknown[x.x.x.x]
Aug 17 02:27:19 mail postfix/smtpd[1197]: disconnect from unknown[x.x.x.x]
Aug 17 02:27:19 mail postfix/smtpd[1199]: lost…
Polaq
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0
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4 answers
Postfix smtp relay can send emails but not relay other hosts
Use Case: We have several Eaton PDU/PSUs that don't support SSL/TLS authentication. I was tasked with building a SMTP relay server that can take the basic SMTP/25 emails and forward them to our email provider via SSL.
Note: The relay host makes the…
Nathaniel Alconcel
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-1
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1 answer
How can i redirect smtp port 25 to port 465
I have Exchnage server ,I can receive emails But I can not send emails out of the domain because Port 25 is block in ISP
How can i redirect smtp port 25 to SMTPS port 465 ?
Abbar
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-1
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2 answers
Does Windows Azure blocks port 587?
I am trying to use Exim4 as my email server on Windows Azure. I found Exim4 uses STARTTLS to do SMTPS, and the port number is 587. The problem is I opened 587 in Azure vm Endpoints, but I can not use the port, even telnet is not successful. so I'm…
billbash
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-3
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1 answer
Redirect OR warn (during initial negotiation) SMTP submitters to use TLS on port 587 - leave 25 explicitly blocked by firewall for better security
I've managed to find a lot of closely related information, but not an answer truly addressing my question.
I am expanding on my homelab server, and have decided to use a small publicly hosted server as a simple proxy. My homelab will operate Mailcow…
MJHd
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