1. 2020-10-01 [1] Mailrelay: wait for downstream response postfix-u 2. 2019-10-23 [3] Replace semicolon in recipient list postfix-u 3. 2019-10-22 [2] Remove duplicate header 'MIME-Version' postfix-u 4. 2019-03-26 [1] DMARC mitigation for mailing list server postfix-u 5. 2016-12-06 [1] Can the "From:" and "Sender:" headers be swapped? postfix-u 6. 2016-02-16 [1] [squid-users] Mutual authenticated SSL squid-use