Exchange 2016 and SMTP problems where is fotigate and fortimail
Hello,
I have a problem with SMTP on Thunderbird and it's probably the wrong configuration on fortigate or fortimail.
This is my configuration:
External DNS:
mx set on mail[.]domain[.]com
1.2.3.4 "A" mail[.]domain[.]com
1.2.3.4 "A" owa[.]domain[.]com
1.2.3.4 "A" autodiscover[.]domain[.]com
Internal DNS:
mail[.]domain[.]com - 10.0.0.150 - FortiMail
owa[.]domain[.]com - 10.0.0.120 - Exchange Server
autodiscover[.]domain[.]com - 10.0.0.120 - Exchange Server
FortiGate Firewall Policy:
1.2.3.4 [port 25] -> 10.0.0.150 [port 25]
1.2.3.4 [port 465] -> 10.0.0.150 [port 465]
1.2.3.4 [port 993] -> 10.0.0.120 [port 993]
1.2.3.4 [port 995] -> 10.0.0.120 [port 995]
1.2.3.4 [port 443] -> 10.0.0.120 [port 443]
That's what I saw:
Internal network:
When I configure IMAP settings on Outlook and I set servers on owa.domain.com then I can receive emails and send emails.
When I configure IMAP settings on Thunderbird and I set servers on owa.domain.com then I can receive emails but I can't send emails.
When I configure IMAP settings on Thunderbirds and I set servers on mail.domain.com then I can receive emails and send emails.
External network:
When I configure IMAP settings on Outlook and I set servers on owa.domain.com then I can receive emails and send emails.
When I configure IMAP settings on Thunderbird and I set servers on owa.domain.com then I can receive emails and send emails.
In exchange Send Connector is set up on 10.0.0.150 - FortiMail
FortMail Settings:
Why on Thunderbrid(in the internal network) server settings don't work on owa[.]domain[.]com?
