Postal HARD FAILS when sending to SBC Global and att.net.???
I have recently got a lot of hard fails and soft fails with my Postal SMTP. I feel I am still in the warming up process as I have just started the email campaign about 3 weeks ago. Doe this most affect my reputation???
I have followed everything to the core Hassan educates about.
Yes bounces will affect your reputation. Try to remove the domains that bounce, and try to better warm up your smtp before running your campaign.