Delphi program at the time of bulk email, an error, the screenshot below,
Has been running a year, this several days appear this kind of circumstance, with 163 free email, upgraded to VIP email problem solving, just want to ask, what is this error mean? Thank you all for the first,

CodePudding user response:

554 should be 163 refused to forward or send you write E-mail

Your running environment is the IP address or domain name?
It is best to use email domain name

CodePudding user response:

My IP address is not very good to send and domain name to send, what are you mean? Please advise,

CodePudding user response:

reference 1st floor doloopcn response:

554 should be 163 refused to forward or send you write E-mail

Your running environment is the IP address or domain name?
It is best to use email domain name

My IP address is not very good to send and domain name to send, what are you mean? Please advise,