Hey,

I need help to kick off my Campaign. In order to do the sender authentication, I find that TXT records have to be added for every contact. Since I have 500 contacts, I have to authenticate 5x100 times the contacts, since 5 email IDs only can be written in the window at a time.

There will be many TXT records that need to be added in the DNS server.

Kindly suggest the right method and steps involved in authentication.

Thanks a lot in advance.

Sundar