How to resolve – Message has lines too long for transport Overview The error “Message has lines too long for transport” occurs when an email contains excessively long lines that exceed...
Resolving a MailChannels “550 5.7.1 [IRR] Too Many Invalid Recipients” Error If you see a “550 5.7.1 [IRR] Too Many Invalid Recipients” error when sending an email, don’t worry! It’s a...
