Depending upon account type( personal, commercial) need to render welcome message in VF page with if condition.
relatedToType="Account"
for commercial account
{!relatedTo.Name},
for personal account
Dear {!relatedTo.FirstName},
how to render the given requirement with if condition in vf page.
Try
Dear {!IF(relatedTo.isPersonAccount, relatedTo.FirstName, relatedTo.Name)}
for simple things. If you have bigger blocks of text - most VF tags have rendered
attribute to turn them on and off.
That's a weird requirement though. "Dear Four Seasons Total Landscaping..." ;)
Who do you send it to when it's a company? Maybe use recipientType="Contact"
and then recipient.FirstName
?