[Mailer] Documented the tag and metadata headers#13732
Closed
javiereguiluz wants to merge 1 commit intosymfony:5.1from
Closed
[Mailer] Documented the tag and metadata headers#13732javiereguiluz wants to merge 1 commit intosymfony:5.1from
javiereguiluz wants to merge 1 commit intosymfony:5.1from