I am having trouble sending emails to education personnel. What is the error 5A1F320A111BF999?
I am having trouble sending emails to education personnel. I get the following error 'An error occurred while sending mail. The mail server responded: 5A1F320A111BF999 Message content rejected due to suspected spam. OB703. Please check the message and try again.'
Wšě wotmołwy (1)
This is the answer from your outgoing server, not from Thunderbird. Probably you've sent e-mail to too many people.