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--- how_to:allowing_mail_relay_through_vpop3 [2010/06/28 11:28] – paul
+++ how_to:allowing_mail_relay_through_vpop3 [2018/11/14 10:45] (current) – external edit 127.0.0.1
@@ Line 1: / Line 1: @@
-=====How To Allow Mail Relay Through vPOP3=====
+=====How To Allow Mail Relay Through VPOP3=====
 If you are allowing remote access into VPOP3 [[Allow Remote Access to VPOP3 Mailboxes|to collect mail]] then you may also want those remote users to be able to send their outgoing mail through VPOP3 as well.
@@ Line 11: / Line 11: @@
 To do this, go to the **Services -> SMTP** page in the VPOP3 settings.
-Click on **Require SMTP Authentication** and **Do not require SMTP authentication for internal/incoming mail**
+In the **SMTP Authentication** box, choose **Required**, and check the **Do not require SMTP authentication for internal/incoming mail** option.
+(In earlier versions you may need to check the **Require SMTP Authentication** and *Do not require SMTP authentication for internal/incoming mail** options instead.)
 Make sure the **SMTP Anti-Relay Protection** method is set to **Check Client IP Address**.
-=====VPOP3 Version 3=====
+=====VPOP3 Version 5 or later=====
+Go to the **SMTP Server -> IP Access Restrictions** tab
+{{:how_to:smtpaccessrestrict5.png?nolink|}}
+The default settings will have **Block - routers** and **Allow - Local Nets** entries. These will block the router itself from sending outgoing email, and anyone on the local network will be able to send outgoing mail.
+Now you have checked the **Require SMTP Authentication** box, local users will still be able to send mail, but only if they change their email client configuration to use SMTP authentication. If you wish, you may check the **Allow Unauth** box next to the **Local Nets** entry to allow your local users to send mail without authenticating. If you have added any other 'trusted' networks, eg other subnets on your office network, you may also choose to check the **Allow Unauth** box for those rules as well.
+Then, add another restriction to **Allow - Any**. Do NOT check the **No Auth** box for this entry. This lets any user send mail as long as they have authenticated first.
+If you wish, you can click on the cell in the **Users** column on the **Allow Any** row to select users who can send mail from the Internet. If you don't do this, then any user can send mail from the Internet. In the screenshot above, we have allowed the 'support' and 'webmaster' to send outgoing mail from the Internet.
+=====VPOP3 Version 3 or 4=====
 Go to the **SMTP Server -> IP Access Restrictions** tab
@@ Line 28: / Line 44: @@
 ** Allow Any - fred bob**
-means that only the ''fred' and ''bob'' user accounts can send mail from the Internet
+means that only the ''fred'' and ''bob'' user accounts can send mail from the Internet

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