when to reload postfix and when not?

dear users,   I updated these two file:   virtual_alias_domains virtual_alias_maps   and run postmap on the second.   Do i need to run "service postfix reload" for this change?   Thanks.

where to put RBL settings

dear list,   Currently I have these rbl settings in main.cf:   smtpd_client_restrictions = permit_mynetworks,         permit_sasl_authenticated,         reject_unauth_destination,         reject_rbl_client zen.spamhaus.org,         reject_rbl_client bl.spamcop.net,         permit   Is t

SPF questions

Dear List, I have enabled policyd-spf in postfix: smtpd_recipient_restrictions = permit_mynetworks, permit_sasl_authenticated, reject_unauth_destination, check_policy_service unix:private/policyd-spf but can you help that, when a SPF check fails, where should I setup the reject action? Thank

Aw: Re: where to put RBL settings

Thank you very much for all the helps. So I changed it to: smtpd_recipient_restrictions = permit_mynetworks, permit_sasl_authenticated, reject_unauth_destination, check_policy_service unix:private/policyd-spf, reject_rbl_client zen.spamhaus.org, reject_rbl_client bl.spamcop.net,

secondary MX and SPF

dear list, when secondary MX server forwards messages to primary MX, how can I setup SPF policy to make them not breaking SPF? Thanks

relay server port listening on all or local?

dear list, I am using postfix as mail relay which is deployed on gateway for internal users. This relay send mail out only, doesn't accept messages. My question is, do I need to make the relay server port 25 listened on 0.0.0.0? or just 127.0.0.1 should work? Thanks

Aw: Re: relay server port listening on all or local?

It’s via HTTP API to post messages to gateway which then relay messages out to internet. Thanks. > Gesendet: Donnerstag, den 01.12.2022 um 17:25 Uhr > Von: "Viktor Dukhovni" > An: postfix-users@postfix.org > Betreff: Re: relay server port listening on all or local? > > On Thu, Dec 01, 2022 a

sender issue with sasl user

Dear list, I found that when a sasl user passed the authentication, it can send email with any sender address, not only the sasl user itself. This may cause our mailsystem to be abused. How can I setup postfix to stop this behavior? Thanks in advance.

Aw: Re: sender issue with sasl user

If I have setup this: smtpd_sender_restrictions = reject_sender_login_mismatch does it work? Thank you > Gesendet: Dienstag, 06. Dezember 2022 um 09:33 Uhr > Von: "Benny Pedersen" > An: postfix-users@postfix.org > Betreff: Re: sender issue with sasl user > > linux...@gmx.net skrev den 2022-12