3cx smtp services
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Hi, recently we have taken over a client that has 3cx onsite. The 3cx stuff is handled by a VOIP company and not us. We have the initial settings working fine. However, we are getting a message that the port 587 is timing out and they can't send an e-mail from the system.
However after the first test fails, the next 10 go through fine. And get delivered.
However if we try to send the official e-mail it never goes through because it has to work on the first attempt.
I know the gmail works because they use it on another customers install and it is fine.
I have opened SMTP by using this info https://vworld.nl/?p=3644However I have no idea how to get this one e-mail to go through on the first attempt. Has anyone dealt with this? Any ideas as to a resolution?
Thanks so much!
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@dpettigr said in 3cx smtp services:
I have opened SMTP by using this info https://vworld.nl/?p=3644
A rule for an outbound connection ?? Why ?
LAN, by default, allows any IP to connect to any port using any protocol.
