Why you should use SMTP to receive mails
Many SMB setups i’ve seen still use the included POP3 Connector to receive mails. Microsoft’s POP3 Connector is included in Small Business Server, but not in regular Exchange installations (this was different with Exchange 2000). That’s actually a good thing, because non-SBS customers can’t use POP3.
The POP3 connector included with SBS 2003 sucks - it can only poll at 15 minutes intervalls, which makes for unnecessary delays. It’s nasty to debug, and setting up new accounts means doing the work twice.
SMTP has a few requirements over POP3, which is why it sometimes not used
- A static IP Address (Dyndns is okay for Home setups)
- A rudimentary knowledge of DNS
- A port forwarding from your router
When sending out mails, you should still use your ISP’s Smarthost. The reasons for this are several
- Sending out big files to multiple addresses will take ages from a standard broadband connection
- Even static ip ranges might be blacklisted and filtered as spam
On the other hand, you will lose a bit of control when using your ISPs smarthost. It’s best to make your own judgment.
Ben:
Wir verwenden “POPCon”, ein POP3 Conenctor eines 3rd Party Herstellers. Läuft tiptop damit.
http://www.christensen-software.com/popconpro.htm
24. February, 2007, 18:47Lukas Beeler:
Kostet Geld und bietet nur Nachteile gegenüber dem Direktempfang. Wieso setzt ihr das ein?
24. February, 2007, 19:18Ben:
Hm hier geht’s doch ums Empfangen ? Weil eben der integrierte POP Connector Mist ist, und der 3rd Party nicht. Weil unsere Server die Mails immer zentral empfangen. Entweder Exchange oder gleich jeder Outlook Express - nicht ?
24. February, 2007, 20:59Lukas Beeler:
Ja, aber Exchange kann die Mails auch direkt via SMTP empfangen - ohne komische Umwege über ISP-Mailserver. Darum gehts :)
24. February, 2007, 21:04Ben:
Ja, wenn das so gemacht wird, müsste der Exchange auch Spam Filter verwalten und von aussen zugänglich sein. Das wollen wir nicht, das soll der ISP Mailserver machen.
27. February, 2007, 13:32