Dreamhost is not a great mail host. Before moving my email to Google Apps for Domains I found Dreamhost's IMAP and SMTP notably slower and not super-relable (not constant failures but enough to notice). Do they even have any meaningful spam filtering?
It never happened to me but I think with Dreamhost mail hosting you run the risk of your email suffering from collateral damage if another customer using the same mail server is labeled a spammer (even if you pay extra for a static ip for your web hosting, I don't think it's used for your mail traffic).
What's good about Dreamhost for email is the "unlimitedness," not just mail storage but also domains, email accounts, email aliases, etc. I still use them for a bunch of per-site addresses that forward to a real mailbox so I can just delete the per-site address if it gets spammed.
It never happened to me but I think with Dreamhost mail hosting you run the risk of your email suffering from collateral damage if another customer using the same mail server is labeled a spammer (even if you pay extra for a static ip for your web hosting, I don't think it's used for your mail traffic).
What's good about Dreamhost for email is the "unlimitedness," not just mail storage but also domains, email accounts, email aliases, etc. I still use them for a bunch of per-site addresses that forward to a real mailbox so I can just delete the per-site address if it gets spammed.