PSCS Wiki

User Tools

Site Tools

Trace:
how_to:incoming_smtp_feed

Differences

This shows you the differences between two versions of the page.

Link to this comparison view

Both sides previous revisionPrevious revision
Next revisionBoth sides next revision
how_to:incoming_smtp_feed [2011/10/25 09:42] – [How to do it] paulhow_to:incoming_smtp_feed [2011/10/25 09:44] – [Disadvantages/Requirements] paul
Line 15: Line 15:
   * Your VPOP3 server must be running all the time. Again it doesn't matter if it is down for a few minutes (or even hours) for maintenance, but this shouldn't be the norm - so you can't turn the VPOP3 PC off at night.   * Your VPOP3 server must be running all the time. Again it doesn't matter if it is down for a few minutes (or even hours) for maintenance, but this shouldn't be the norm - so you can't turn the VPOP3 PC off at night.
   * You have to allow incoming SMTP connections through your firewall (port 25 TCP) to the VPOP3 computer   * You have to allow incoming SMTP connections through your firewall (port 25 TCP) to the VPOP3 computer
-  * Your ISP has to allow incoming SMTP connections to you. A few ISPs will block port 25 by default, and require you to ask for it to be opened up. (A very few ISPs won't open it up even if you ask). This is a security thing, as badly configured mail servers can be used by spammers.+  * Your ISP has to allow incoming SMTP connections to you on port 25. A few ISPs will block port 25 by default, and require you to ask for it to be opened up. (A very few ISPs won't open it up even if you ask). This is a security thing, as badly configured mail servers can be used by spammers.
   * You have to make sure that you don't configure your VPOP3 server as an **open relay**. By default VPOP3 will not be set up as an open relay, but if you change the SMTP service **IP Access Restrictions** without understanding what you are doing you may make it into an open relay - that will allow spammers to send millions of messages through your mail server without your permission.   * You have to make sure that you don't configure your VPOP3 server as an **open relay**. By default VPOP3 will not be set up as an open relay, but if you change the SMTP service **IP Access Restrictions** without understanding what you are doing you may make it into an open relay - that will allow spammers to send millions of messages through your mail server without your permission.
   * VPOP3's **SMTP Rules** for incoming SMTP are slightly less powerful than the **Download Rules**. This is due to differences in the way the two mechanisms work - for instance you cannot have VPOP3 ask you if you want to download large messages, because that is simply not possible.   * VPOP3's **SMTP Rules** for incoming SMTP are slightly less powerful than the **Download Rules**. This is due to differences in the way the two mechanisms work - for instance you cannot have VPOP3 ask you if you want to download large messages, because that is simply not possible.
how_to/incoming_smtp_feed.txt · Last modified: 2018/11/14 10:45 by 127.0.0.1

Page Tools

Donate Powered by PHP Valid HTML5 Valid CSS Driven by DokuWiki