ngx_mail_capabilities  393 mail/ngx_mail.h char *ngx_mail_capabilities(ngx_conf_t *cf, ngx_command_t *cmd, void *conf);
ngx_mail_capabilities   69 mail/ngx_mail_imap_module.c       ngx_mail_capabilities,
ngx_mail_capabilities   68 mail/ngx_mail_pop3_module.c       ngx_mail_capabilities,
ngx_mail_capabilities   69 mail/ngx_mail_smtp_module.c       ngx_mail_capabilities,