I have a custom domain specifically so I can give each merchant I'm dealing with a unique address. For example let's say I was doing business with McDonalds, I'd give them the email address mcdonalds@[mydomain].com, then the catch-all for [mydomain] would receive it. But now if I want to send an email in reply, it will come from info@[mydomain].com. I need to be able to set the "from" field manually so that it instead looks like the email was sent from mcdonalds@[mydomain].com.
I do not want to have to set up a separate address for every single merchant - that's totally unworkable.
This is CRITICAL.
I have a custom domain specifically so I can give each merchant I'm dealing with a unique address. For example let's say I was doing business with McDonalds, I'd give them the email address mcdonalds@[mydomain].com, then the catch-all for [mydomain] would receive it. But now if I want to send an email in reply, it will come from info@[mydomain].com. I need to be able to set the "from" field manually so that it instead looks like the email was sent from mcdonalds@[mydomain].com.
I do not want to have to set up a separate address for every single merchant - that's totally unworkable.