services.postgrey.greylistHeader
Prepend header to greylisted mails; use %%t for seconds delayed due to greylisting, %%v for the version of postgrey, %%d for the date, and %%h for the host
- Type
string- Default
"X-Greylist: delayed %%t seconds by postgrey-%%v at %%h; %%d"- Declared
- <nixpkgs/nixos/modules/services/mail/postgrey.nix>