Hi,
i have XG210 V18 MR5, it is configured as MTA mode. earlier i single ISP say ISPA, i did not face any issue with outgoing email.MX record
entries were against ISPA
couple of days ago i added anohter ISP, say ISPB, terminated it on firewall. it start apearing in default nat rule.
i want to use it for wifi users. i create a firewall rule in which i added wifi zone and wifi source network. i only want
that wifi user will use ISPB , in case of failure of ISPB then they will switch to ISPA, for this i created a SDWAN rule,
in that rule i selected incoming interface a wifi interface and selected its subnet and primary gateway ISPB and
backup gateway ISPA.
i also created a SD-WAN rule for LAN users in that rule i selected incoming interface a LAN interface and selected its subnet and primary gateway ISPA and
backup gateway ISPB.
after all this i start facing a weired issue.
when user send email then it is taking ip address of ISPB for certain domain like gmail.com, sometimes if works fine. but sometime it takes ip of ISPB, as i have not make
enteries against MX, SPF against ISPB then my mails are bounced back. how can i configure that when my email server tries to sending email then it will always
use ISPA only.
please guide me how to rectify this issue.
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