Mercury/32 Email Server & Sonicwall

245 pts.
Tags:
Mercury/32 & Sonicwall
We are running email server on Mercury/32 v4.73. We have Sonicwall - TZ 180 Enhanced as our security. When our users log on to our network via Sonicwall VPN connection, the POP3 Server isn't responding to allow the download of their email. They are able to send mail with no problems, but can't receive. A Sonicwall Technician checked all setting on the Sonicwall and found the sonicawall device isn't blocking the connection on their end. They stated the email server is blocking this connection. We checked the email server and all settings seem to be correct. This problem didn't occur until after we ran a firmware update on the sonicwall device. Once again, Sonicwall Technician assured it's an error with the email server. Does anyone know how to fix this issue?  Something's blocking the connection within Mercury/32, but we can't seem to figure it out.


Software/Hardware used:
Mercury/32 v. 4.73 & Sonicwall
ASKED: January 21, 2014  2:26 PM
UPDATED: January 28, 2014  4:24 PM

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  • Kevin Beaver
    Are you using POP3 or POP3S? Perhaps even IMAP or IMAPS? They all use different ports (110, 995, 143, and 993 respectively) so make sure you've opened the right ports on your firewall.
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  • Twill
    We are using POP3 port 110, and it's open on our firewall. 
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