CSF Possibly Blocking Gmail

[raf_slasher06]

This one is enable "Allow exim to listen on a port other than 25" and I allow 26 to listen

I have open port 26 see below

# Allow incoming TCP ports
TCP_IN = "20,21,22,25,2525,26,53,80,110,143,443,465,587,993,995,1110,2221,2077,2078,2079,2080,2082,2083,2086,2087,2095,2096"

# Allow outgoing TCP ports
TCP_OUT = "20,21,22,25,26,2525,37,43,53,80,110,113,443,465,587,873,993,995,1110,2221,2086,2087,2089,2703"

# Allow incoming UDP ports
UDP_IN = "20,21,53"

# Allow outgoing UDP ports
# To allow outgoing traceroute add 33434:33523 to this list
UDP_OUT = "20,21,25,26,53,110,113,123,465,587,873,993,995,1110,2221,6277,24441"

[Sergio]

There is the problem. If you want gmail to listen on ports 465,587
you have to open them in TCP and in SERVICE MANAGER.
In Service Manager, set SMTP ports to: 26,465,587

You already have those ports opened in TCP / UDP but you need to declare them in Service Manager.

Sergio

[raf_slasher06]

Still the same. I have open port "Allow exim to listen on a port 25,26,465,587" still unsuccessful

Nothing happen when CSF is enbale. But when CSF disable, thats the time Gmail incoming emails arrive.

All Gmail IP has been put to csf.ignore

IPV4 IPs for Google
64.18.0.0/20
64.233.160.0/19
66.102.0.0/20
66.249.80.0/20
72.14.192.0/18
74.125.0.0/16
108.177.8.0/21
173.194.0.0/16
207.126.144.0/20
209.85.128.0/17
216.58.192.0/19
216.239.32.0/19
IPV6 IPs for Google
2001:4860:4000::/36
2404:6800:4000::/36
2607:f8b0:4000::/36
2800:3f0:4000::/36
2a00:1450:4000::/36
2c0f:fb50:4000::/36

[Sergio]

Have you checked that none of the gmail IPs are already blocked in CSF?
Go to ConfigServer Security&Firewall and search for the word ".google." and delete any line that matchs.

Also, it could help if you check your resolvers and set google DNS resolvers instead of the ones that you have now. Before you modify your resolvers, write it down the ones that you have now before you add the googles one just in case you need to use the old ones.

If nothing works and if you payed for the installation of CSF suite, it could be better that you open a support ticket asking for help.